Cisco 350-601 Implementing Cisco Data Center Core Technologies (350-601 DCCOR) Exam Practice Test

 Option D is the correct statement about the Deployment Immediacy for VMM domains associated to EPGs when the APIC EPG Resolution Immediacy is set to “Immediate”. This means that the policy is pushed to the hardware as soon as the leaf switch is booted, regardless of whether there are any VMs in the EPG or not. This ensures that the policy is ready to be enforced as soon as a VM is created or moved into the EPG. References:

• Cisco APIC Basic Configuration Guide, Release 4.2(x) - Configuring VMM Domains [Cisco Application Policy Infrastructure Controller (APIC)], Configuring VMM Domains, Configuring the Deployment Immediacy for VMM Domains
• Cisco APIC Basic Configuration Guide, Release 4.2(x) - Configuring VMM Domains [Cisco Application Policy Infrastructure Controller (APIC)], Configuring VMM Domains, Configuring the Resolution Immediacy for EPGs

In a two-node Cisco HyperFlex Edge deployment, the witness is deployed to Cisco Intersight. This cloud-based management platform provides intelligent insights and automation that scales with the business. It aids in managing all HyperFlex Edge deployments globally from a single cloud-based interface. References:

• Cisco HyperFlex Edge Data Sheet - Cisco, Cisco HyperFlex Edge Data Sheet, Cisco HyperFlex Edge Deployment Options
• Cisco HyperFlex Edge Installation Guide, Release 4.0 - Deploying HyperFlex Edge Clusters [Cisco HyperFlex HX Data Platform], Deploying HyperFlex Edge Clusters, Deploying a Two-Node HyperFlex Edge Cluster

 ARP suppression is a feature used in VXLAN/EVPN environments to optimize ARP responses and reduce unnecessary ARP broadcasts across the fabric. When ARP suppression is enabled, the local VTEP (VXLAN Tunnel Endpoint) can respond to ARP requests for known IP-to-MAC address bindings, which are learned via the BGP EVPN control plane. This prevents the need for ARP broadcasts to be sent across the entire VXLAN fabric, thus optimizing the ARP response mechanism and reducing broadcast traffic1.

References:

• Cisco Programmable Fabric with VXLAN BGP EVPN Configuration Guide2.
• Community discussions on ARP suppression in VXLAN/EVPN

 The preserve identities feature is not included in the logical configuration backup operation type. This type of backup includes the configuration settings that are logically grouped, such as service profiles, policies, and pools, but does not include the unique identifiers or configurations that are specific to a particular system or setup, which are preserved in a full state or system configuration backup.

References := For detailed information on the different backup operation types and their characteristics, please refer to the official Cisco documentation on Implementing and Operating Cisco Data Center Core Technologies (DCCOR), specifically the sections related to backup and restore operations within the Cisco Unified Computing System (UCS) Manager1.

When configuring traffic capture to investigate issues such as buffering problems and packet drops, it’s important to consider where to place the capture points. Typically, you would configure a SPAN (Switched Port Analyzer) or RSPAN (Remote SPAN) session to mirror the traffic from the affected areas to a monitoring device. The configuration would involve:

• Identifying the source ports or VLANs where the issues are observed.
• Specifying a destination port connected to a network analyzer like Wireshark.
• Ensuring the destination port is not used for regular network traffic.

For example, a basic SPAN session configuration might look like this:

monitor session [session_number] source interface [interface_id]

monitor session [session_number] destination interface [destination_interface_id]

References: The Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course provides insights into the capabilities of Cisco devices for traffic capture and monitoring. For detailed steps and best practices, refer to Cisco’s official documentation on configuring packet capture

To create a virtual Fiber Channel interface and associate it with an Ethernet physical interface, the correct configuration commands would be:

• Enter the interface configuration mode for the virtual Fiber Channel interface using the command interface vfc7.
• Bind the virtual Fiber Channel to the Ethernet interface using the command bind interface ethernet 1/7.

This configuration associates the virtual Fiber Channel interface with VSAN 7 and maps VLAN 700 to the VSAN, as required by the converged network adapter (CNA).

References := The explanation is based on standard practices for configuring virtual Fiber Channel interfaces in a Cisco environment, as detailed in Cisco’s data center configuration guides and technical documentation.

1- feature netflow

2- flow exporter

3- flow monitor

4- interface

The Cisco UCS firmware Auto Sync Server policy includes several configuration settings that determine how and when firmware on servers is synchronized. The two available settings from the options provided are ‘User Acknowledge’ and ‘No Action’. ‘User Acknowledge’ requires an administrator to manually acknowledge firmware upgrades in the Pending Activities dialog box before they are applied. ‘No Action’ means no firmware upgrade is initiated on the server. These settings allow administrators to control the firmware synchronization process according to their operational policies and procedures.

References := Using Firmware Automatic Synchronization Server Policy - Cisco, Cisco UCS B-Series CLI Firmware Management Guide, Release 2.2

The statement that is true about the impact of a rolling EPLD upgrade on a Cisco MDS 9000 Series Switch is that only the modules that are being upgraded are disrupted. A rolling EPLD upgrade is a type of EPLD upgrade that allows the user to upgrade one or more modules in a switch without affecting the rest of the modules. The rolling EPLD upgrade requires a module reload for each module that is being upgraded, which causes a temporary disruption of traffic and services on that module. However, the other modules in the switch continue to operate normally and do not require a reload. The other statements are not true because:

• All modules on the switch are not disrupted. As explained above, only the modules that are being upgraded are disrupted, while the other modules are unaffected by the rolling EPLD upgrade.
• An EPLD upgrade is not nondisruptive. An EPLD upgrade is a process that updates the firmware of the electrical programmable logic devices (EPLDs) that provide hardware functionalities in the switch modules. An EPLD upgrade always involves a module reload, which causes a disruption of traffic and services on that module. However, the disruption can be minimized by using the hitless or non-disruptive EPLD upgrade modes, which preserve the forwarding state and configuration of the module during the reload.
• The upgrade cannot be performed from the standby supervisor module. The EPLD upgrade process requires the supervisor module to be in active mode before it can be upgraded. The standby supervisor module must be switched to active mode manually or automatically before the upgrade can begin. References: For more information on how to perform a rolling EPLD upgrade on a Cisco MDS 9000 Series Switch, please refer to the following resources:
• Cisco MDS 9000 Series EPLD Release Notes, Release 8.4(1)
• Cisco MDS 9000 Series NX-OS System Management Configuration Guide

Creating a static route in VRF WEB for the subnet of Server 2 on N5K-1 (D) will direct traffic from Server 1 to the specific subnet where Server 2 resides. This ensures that traffic can flow from Server 1 to Server 2, even if it is unidirectional. The static route provides a specified path for the traffic to follow, which is necessary when the traffic must be unidirectional and the gateways are on different VLANs.

References: For further details on configuring static routes in a VRF on Cisco Nexus switches, please refer to the Cisco Data Center Core Technologies documentation, which provides guidelines on implementing routing protocols and static routes within VRF instances.\

When a Cisco Nexus 9000 series switch encounters a startup configuration corruption, the recovery process involves clearing the current configuration, restarting the device, and then restoring the configuration from a previously saved file. The correct sequence is to first clear the configuration to prevent the corrupted startup configuration from loading upon restart. After restarting the device, the previously saved configuration file should be copied to the running configuration. Finally, to ensure the switch starts with the correct configuration in future restarts, the running configuration should be saved to the startup configuration.

References: The recovery process is detailed in the Cisco community documentation, where it outlines the steps for recovering the configuration in UCS by importing the configuration from a previously saved location

To recover the configuration of the Cisco UCS Manager from a full backup available on a backup SCP server, the actions in Option A should be followed. These actions typically involve accessing the Cisco UCS Manager interface, navigating to the backup and restore settings, and initiating a restore operation using the SCP protocol to retrieve the backup file from the SCP server.

References: = For detailed steps and best practices, you can refer to the official Cisco documentation on “Backing Up and Restoring the Configuration” in the Cisco UCS Manager guide1.

 To meet the requirements of using the secondary interface and then falling back to the primary interface when it becomes available again, the engineer should enable the Uplink failover option in the vNIC properties of the Cisco UCS Cisco Integrated Management Controller (CIMC) network adapter for a standalone Cisco C-Series server. The Uplink failover option allows the vNIC to switch to the secondary interface in case of a failure in the primary interface, and then switch back to the primary interface when it recovers. The Uplink failover option also allows the engineer to configure the Fallback Timeout value, which determines how long the vNIC waits before switching back to the primary interface. In this case, the Fallback Timeout value is set to 600 seconds, which means the vNIC will wait for 10 minutes before falling back to the primary interface. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 5: Cisco Unified Computing System, Lesson 5.3: Cisco UCS C-Series Servers
• Cisco UCS C-Series Servers Integrated Management Controller GUI Configuration Guide, Release 4.0, Chapter: Configuring Network-Related Settings and Features, Section: Configuring vNICs

The command “show install all impact epld bootflash:n9000-epld.6.1.2.13.1.img” is used to display the impact of the EPLD (Electronic Programmable Logic Device) upgrade on the operation of the Cisco Nexus 9000 series switch. This command does not perform the upgrade; instead, it provides a report that shows what the upgrade would affect if it were to be executed. This is useful for planning and ensuring that the upgrade will not disrupt critical services or operations on the switch. References :=

• Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide, Chapter: Managing EPLD Images

The command ‘aaa authentication login default fallback error local’ is used to ensure that if RADIUS servers are unreachable, the system will fall back to using the local user database for SSH access to the Cisco MDS 9000 Series Switch.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/con figuration/guides/security/nx-os/sec_cli_6-x/cradtac1.html

 To configure a Fibre Channel device alias named TEST for a device attached to port fc1/9 on a Cisco Nexus Series Switch, the correct command set is found in Option A. The commands should be entered in configuration mode, starting with accessing the device-alias database, creating the device-alias named TEST with the specified pwwn, and committing the changes to the database123.

References := The process for configuring a Fibre Channel device alias on a Cisco Nexus Series Switch is detailed in the Cisco Nexus 9000 Series NX-OS SAN Switching Configuration Guide and other Cisco documentation related to SAN switching and device aliases

After creating a keyring and generating a certificate request, the next step is to create a trusted point. This involves downloading the certificate chain from the CA authority, converting it to the required format, and creating a Trust-Point on UCS Manager where the certificate details are pasted

 The command set in Option C correctly outlines the steps to configure a named VSAN called “VSAN10” with the specified requirements. It includes creating the VSAN with ID 10, assigning an FCoE ID of 20, and attaching it to port 2 in slot 1.

References := Detailed commands and configurations for VSANs can be found in the Cisco Data Center Core Technologies documentation, particularly in the sections that cover Fibre Channel switch mode and VSAN configuration

To use SaaS to manage Cisco computing, you need to have a Cisco Intersight account and a device/claim ID for each device that you want to manage. Cisco Intersight is a cloud-based platform that provides unified management, automation, and analytics for Cisco data center products. A device/claim ID is a unique identifier that is generated when you register a device with Cisco Intersight. You can use the device/claim ID to claim the device and add it to your Intersight account. Once you claim the device, you can monitor, configure, and troubleshoot it from the Intersight dashboard. References: For more information on how to use SaaS to manage Cisco computing, please refer to the following resources:

• Cisco Intersight Overview
• Cisco Intersight Getting Started Guide
• Cisco Intersight Device Connector

Option C is the correct configuration that is expected to be saved by using a logical configuration backup. A logical configuration backup includes the service profiles, service profile templates, policies, pools, and logical LAN and SAN connectivity configuration. It does not include the systems, roles, or servers configuration, which are part of the full state or all configuration backups. References:

• Cisco UCS Manager GUI Configuration Guide, Release 4.0 - Backing Up and Restoring the System Configuration [Cisco UCS Manager], Backing Up and Restoring the System Configuration, Backup Types
• Cisco UCS Manager CLI Configuration Guide, Release 4.0 - Backing Up and Restoring the System Configuration [Cisco UCS Manager], Backing Up and Restoring the System Configuration, Backup Types

vsh -c "show ip arp", awk'{print "ping" $1}', vsh, egrep "statistics|loss"

EPLD updates on Cisco MDS 9000 Series Switches are characterized by updating hardware functionality on a device (Option B). This means that the updates can enhance device capabilities or address issues without the need for physical hardware changes. References := Cisco Data Center Core Technologies

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/release/notes/epld/epld_rn.html

 NX-API is the appropriate solution to meet the requirements specified. It allows for programmatic device configuration using a Windows-based scripting environment like PowerShell and supports HTTPS transport for secure communication1.

References := Cisco Nexus 9000 Series NX-OS Programmability Guide, Release 9.3(x)1.

During an In-Service Software Upgrade (ISSU) on Cisco Nexus 9000 Series Switches, the LACP peer session is designed to remain up without any renegotiation or reset. This is because ISSU is a process that allows for software upgrades without disrupting the normal operation of the network. The default LACP timers and the ISSU process are designed to work together to maintain the session state even during the upgrade process. The Nexus upgrade process will force the chassis itself to upgrade disruptively if LACP fast is used, which is not the default setting. A disruptive upgrade means the chassis itself will fully reload, impacting all ports on the switch, not just the LACP fast ones. However, with the default aging timers, the LACP peer connection should not be affected1.

References:

• Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide2.
• Cisco Community discussions on LACP and ISSU impact

To meet the requirements of building a lab replica of a Cisco UCS production environment, the file must be exported in XML format using an encrypted method. Option B, Protocol SCP (Secure Copy Protocol), is used for securely transferring computer files between a local and a remote host or between two remote hosts. Option C, Type Full state, ensures that the complete configuration and state are included in the exported file. References:

• Cisco UCS Manager GUI Configuration Guide, Release 4.0 - Backing Up and Restoring the System Configuration [Cisco UCS Manager], Backing Up and Restoring the System Configuration, Exporting the System Configuration
• Cisco UCS Manager CLI Configuration Guide, Release 4.0 - Backing Up and Restoring the System Configuration [Cisco UCS Manager], Backing Up and Restoring the System Configuration, Exporting the System Configuration

 NFS, or Network File System, is a file service protocol that allows files to be accessed over a network in a manner similar to how local storage is accessed. NFS provides the capability for clients to view, store, and update files on a remote Linux-based storage repository. It is widely used as a distributed file system standard for Network Attached Storage (NAS) because it allows the files to appear locally mapped to the client, facilitating easy file sharing and management1.

References := The use of NFS in NAS environments is well-documented in Cisco Data Center Core Technologies source documents and study guides, which explain how NFS works and its role in providing distributed file system services

 For fabric redundancy in NPV mode on a Cisco MDS 9000 Series Switch, the engineer must connect the NPV devices to multiple upstream switches (A). This setup ensures that if one upstream switch fails, the NPV device can still reach the fabric through another upstream switch, maintaining fabric redundancy.

References := Switch Configuration - Configuring N Port Virtualization - Cisco2.

PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and the associated scripting language. It is integrated with Cisco UCS Manager and provides cmdlets for automating the management of Cisco UCS domains, including Service Profiles. The UCS PowerTool is a set of PowerShell modules designed specifically for Cisco UCS, making it a suitable choice for a network engineer with scripting skills but limited programming knowledge. It supports configuration tasks for both B-Series Blade Servers and C-Series Rack Servers, aligning with the administrator’s future needs.

References: Cisco Community discussions on UCS PowerTool + Service Profiles1 and the Cisco UCS PowerTool Scripts Index

 In a Cisco ACI fabric, when implementing a Virtual Machine Manager (VMM) domain, VLANs can be allocated dynamically or statically within a VLAN pool. To incorporate a static VLAN into a dynamic VLAN pool, the correct approach is to add a static VLAN allocation range to the VLAN pool. This allows for the specific VLAN to be reserved and used consistently for certain applications or services, while still maintaining the flexibility of dynamic allocation for other VLANs within the pool.

 The two components that support specific power limits on a Cisco UCS C-Series rack server are the processor and the graphic card. The processor and the graphic card are the two components that consume the most power on a server, and they can be configured to have specific power limits to control the power usage and performance of the server. The power limits can be set using the Cisco Integrated Management Controller (CIMC) web interface or CLI, or using the Cisco UCS Manager if the server is integrated with a Cisco UCS domain. The power limits can be applied to individual processors or graphic cards, or to the entire server. The power limits can help to optimize the power efficiency and thermal management of the server, as well as to prevent power capping or throttling issues. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 5: Cisco Unified Computing System, Lesson 5.4: Cisco UCS C-Series Servers
• Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 4.0, Chapter: Configuring Server Power, Section: Configuring Processor Power Limits
• Cisco UCS C-Series Servers Integrated Management Controller GUI Configuration Guide, Release 4.0, Chapter: Configuring Server Power, Section: Configuring Processor Power Limits

Upgrading the EPLD on a Cisco Nexus switch is a disruptive process that requires the switch to reboot multiple times. Each EPLD device on the switch must be upgraded individually, and the switch must reboot to initialize the new EPLD version for each device. This process ensures that all hardware components are properly updated and can operate with the new firmware, but it does cause temporary disruptions to network traffic as each module reboots.

References: For more detailed information, please refer to the Cisco Nexus 9000 Series FPGA/EPLD Upgrade Release Notes, where it discusses the impact of EPLD upgrades and the necessity of multiple reboots during the process1. Additionally, the Cisco Nexus 9000 Series NX-OS Software Upgrade and Downgrade Guide provides guidelines on the upgrade process, including the disruptive nature of EPLD upgrades

The MAC address that is an HSRP version 2 address is 0000.0C9F.F0C8. HSRP (Hot Standby Router Protocol) is a protocol that provides redundancy and load balancing for IP networks by allowing multiple routers to share a virtual IP address and MAC address. HSRP version 2 supports up to 4096 groups, and uses a different MAC address format than HSRP version 1. The MAC address format for HSRP version 2 is 0000.0C9F.FXXX, where XXX is the hexadecimal value of the group number. For group 200, the hexadecimal value is C8, so the MAC address is 0000.0C9F.F0C8. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 3: Data Center LAN Network Connectivity, Lesson 3.6: Cisco Nexus 5000 Series Switches
• Cisco Nexus 5000 Series NX-OS Unicast Routing Configuration Guide, Release 5.2(1)N1(1), Chapter: Configuring HSRP, Section: HSRP Version 2

Graphical user interface, text, application, email Description automatically generated

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/nx-os/configuration/guides/fund/

fund_nx-os_5-x/b_Cisco_MDS_9000_Series_NX-OS_Fundamentals_Configuration_Guide_Release_5-x/

b_Cisco_MDS_9000_Series_NX-OS_Fundamentals_Configuration_Guide_Release_5-x_chapter_01000.html

 In a Cisco HyperFlex Edge deployment, the witness VM, known as the “Invisible Cloud Witness,” resides within Cisco Intersight. This cloud-based platform eliminates the need for a dedicated witness VM by providing a virtual witness as a service, which simplifies the deployment and ongoing operations of HyperFlex Edge clusters1234.

References:

• Cisco HyperFlex Edge Deployment Guide, Release 5.0(x)1.
• Cisco HyperFlex Systems Installation Guide for VMware ESXi, Release 5.02.
• Cisco Blogs on HyperFlex and Intersight3.
• Cisco’s official page on HyperFlex for Edge Environments

 Microsegmentation is a feature of ACI that allows granular control of traffic between endpoints based on vCenter VM attributes, such as name, guest OS, or network adapter type. Microsegmentation works by creating a micro-EPG for each VM and applying contracts and policies to the micro-EPGs. When microsegmentation is enabled, ACI performs distributed switching and routing on the ESXi hosts using the Cisco Application Virtual Switch (AVS) or the Cisco Application Virtual Edge (AVE). This allows ACI to enforce policies at the hypervisor level, without requiring any changes to the physical network or the VM configuration. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 6: Cisco ACI, Lesson 6.3: Cisco ACI Integration
• Cisco ACI Virtualization Guide, Release 4.2(x), Chapter: Configuring Microsegmentation

 The ‘iqn_pool’ attribute in Ansible is used to apply iSCSI initiator identifiers to all iSCSI vNICs for service profiles derived from a service template. This ensures that each iSCSI vNIC has a unique identifier for storage communication2

In the context of Cisco Nexus switches, VRF (Virtual Routing and Forwarding) is used to create multiple virtual routing tables within a single switch. By using the default VRF for the scheduler job, the engineer ensures that the TFTP server, which is reachable in the global routing table, can be accessed without the need for additional VRF configuration. This simplifies the backup process and avoids potential issues with VRF-specific routing that could prevent access to the TFTP server.

References: For more detailed information, please refer to the official Cisco documentation for Nexus 3000 Series Switches or the Implementing and Operating Cisco Data Center Core Technologies (DCCOR) study materials.

To meet the deployment requirements for implementing VSANs on a Cisco MDS 9000 Series Switch, the correct steps are to create VSAN 10 in the VSAN database and bind it to the interface fc1/1. This assigns the host on port fc1/1 to VSAN 10. Additionally, enabling VSAN trunking on the Inter-Switch Link (ISL) and allowing VSAN 10 on the ISL ensures that the port channel 10 can pass multiple VSANs, including VSAN 10. This configuration allows for the segregation of traffic and maintains the isolation of different VSANs while still permitting communication across the shared physical infrastructure12.

References:

• Cisco documentation on “Configuring VSANs and Interfaces” provides detailed steps on creating and managing VSANs1.
• The “Cisco MDS 9000 Series Fabric Configuration Guide” further elaborates on managing VSANs and their associated interfaces

The Firmware Auto Sync Server policy in Cisco UCS Manager allows administrators to set when and how firmware versions on recently discovered servers should be upgraded. The policy options include ‘User Acknowledge’, which requires an administrator’s acknowledgment to initiate the firmware upgrade, and ‘No Action’, which means no firmware upgrade will be initiated on the server. These settings ensure that firmware upgrades are controlled and do not occur without the necessary administrative oversight.

References: Using Firmware Automatic Synchronization Server Policy

 In a vPC (Virtual Port Channel) environment, broadcast packets received on the vPC peer link are not forwarded out on the vPC member ports. This behavior is due to the vPC loop avoidance rule, which prevents traffic received on a vPC peer link from being sent back out of the vPC member ports. Therefore, the Agg-1 switch will prevent broadcast packets that arrive on the vPC peer link from exiting the switch on ports Eth2/4 and Eth2/5.

References: For more detailed information, you can refer to the Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course, which covers the essentials of vPC operations and the loop avoidance mechanism

 In Cisco ACI, TCAM resources can be optimized by configuring a single contract that is provided and consumed by all EPGs within a VRF. This approach ensures that all EPGs consume the same services, thus reducing the number of individual contracts and associated TCAM entries. By having a common contract, the ACI fabric can efficiently manage access control policies and service insertion without the need for multiple, redundant entries in the TCAM, which can lead to resource exhaustion. References: The information is based on the best practices for TCAM management in Cisco ACI fabrics, as detailed in the Cisco community discussions and Cisco’s official documentation on TCAM resource issues and workarounds12. Additionally, the concept of using a single contract for multiple EPGs is supported by the Cisco ACI Endpoint Security Group (ESG) Design Guide, which outlines the steps for implementing a single ESG for open communication between subnets (EPG selectors)

 In a VXLAN-based data center interconnect scenario where the transport supports a maximum MTU of 1554 bytes and does not support outbound traffic replication, the engineer must use BGP to announce host reachability. This allows for the advertisement of host routes over the BGP session, enabling remote VTEPs to learn about hosts in the interconnected data centers without relying on traffic replication.

References: VXLAN UNDERLAY - MTU considerations - Cisco Community2; MTU Considerations for VXLAN | Matt Oswalt

Private Cloud: owned, managed, and operated by a single organization.

Community Cloud: Owned, managed, and operated by one or more organizations or teams.

Public Cloud: Provisioned for open use.

Hybrid Cloud: At least two or more separate cloud infrastructures are connected together to facilitate hosted data and application portability.

The VLANs capable of being assigned on vPC interfaces are those that are active on the vPC peer-link. According to the exhibit, the active VLANs on the vPC peer-link range from 100 to 105. However, VLAN 105 is not listed under the individual port statuses for Po7 and Po8, which indicates that VLAN 105 is not actively participating in the vPC. Therefore, the VLANs that can be assigned to vPC interfaces are 100-104.

References := For a detailed understanding of vPC configurations and VLAN assignments, one should refer to the Cisco Data Center Core Technologies study materials, which provide comprehensive coverage of vPC operations and best practices.

The FCoE Initialization Protocol (FIP) uses a 24-bit FC-MAP and concatenates a 24-bit Fibre Channel ID to create a fabric-provided MAC address. This is part of the FIP’s role in establishing and maintaining the virtual links between an E-Node and the Fibre Channel Forwarder (FCF). The MAC address is essential for the E-Node to participate in FCoE communications within the fabric. The process ensures that each E-Node has a unique address on the Ethernet network, which encapsulates the Fibre Channel frames for transport. References := Cisco MDS 9000 Series FCoE Configuration Guide, Release 9.x

To SPAN only the ingress traffic on a Cisco MDS 9000 series switch, the configuration must include specifying the source interface for monitoring (fc 1/23) and setting it to capture only ingress traffic (rx). Option A and Option C contain the necessary commands to achieve this.

References: = Detailed steps and examples for configuring SPAN to monitor ingress traffic on Cisco MDS 9000 series switches can be found in the Cisco MDS 9000 Series System Management Configuration Guide

To schedule the firmware upgrade of the Red1 and Red2 leaf switches with the requirements of minimal upgrade time, no service impact, and parallel upgrade, SchedulerPolicy1 and SchedulerPolicy2 with a one-time window trigger that has maximum concurrent nodes 2 should be used. This allows both Red1 and Red2 to upgrade simultaneously within the same maintenance window, thus minimizing the time and avoiding any service disruption.

References := Further details can be found in the Cisco Data Center Core Technologies documentation

 Changing the default host firmware policy in Cisco UCS Manager affects any service profile that uses the global-default host firmware policy. This is because the global-default host firmware policy serves as a template for service profiles that do not have a specific host firmware policy defined. When changes are made to the default policy, they propagate to all service profiles that reference it, potentially affecting the firmware version and settings across multiple servers.

References: 350-601 DCCOR exam topics2.

The In-Service Software Upgrade (ISSU) process is designed to upgrade the system software with minimal disruption to the network. Nonstop forwarding (NSF) and stateful switchover (SSO) are two features that work together to maintain packet forwarding and switch state information during the ISSU process. NSF allows the router to continue forwarding packets even when the route processor is failing over, while SSO synchronizes state information between redundant route processors to ensure a seamless transition during a failover1.

References := For a deeper understanding of the ISSU process and its associated features, you can refer to Cisco’s official documentation on In-Service Software Upgrade (ISSU), which provides detailed information on how NSF and SSO contribute to a nondisruptive upgrade

The impact of the EPLD update of the supervisor module on the Cisco MDS 9000 switches is that the redundant supervisor takes over while the EPLD update is in progress and there is no service disruption. EPLD (Electronic Programmable Logic Device) is a firmware component that controls the functionality of various hardware modules on the switch, such as the supervisor, line cards, and fabric modules. The EPLD update is performed to enhance the performance and features of the hardware modules, and to fix any bugs or issues. The EPLD update process requires a reload of the affected module, which can cause a temporary loss of connectivity and traffic. However, if the switch has a redundant supervisor module configured in high availability mode, the EPLD update can be performed without any service disruption. This is because the redundant supervisor takes over the control plane functions while the active supervisor is being updated, and then switches back to the active supervisor when the update is completed. The EPLD update does not affect the data plane traffic, as the line cards and fabric modules continue to forward packets during the update process. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 7: Data Center Storage Connectivity, Lesson 7.3: Fibre Channel Protocol
• Cisco MDS 9000 Family NX-OS System Management Configuration Guide, Chapter: Installing Software Images and EPLDs, Section: Updating EPLDs

 The ‘priv’ security level in SNMPv3 provides both authentication and encryption, ensuring that SNMP trap messages are both authenticated and protected from disclosure. This level uses a combination of a username and a strong authentication and encryption mechanism to secure the messages

Option D is the correct set of steps to perform a backup and restore of the Cisco Nexus 5000 Series Switch configuration using UDP as the only protocol. TFTP is a UDP-based protocol that can be used to transfer files between the switch and the backup server. The startup-config file contains the configuration that is applied when the switch boots up, while the running-config file contains the configuration that is currently active on the switch. To restore the configuration from the backup, the backup-config file needs to be copied from the backup server to the running-config file on the switch. References:

• Cisco Nexus 5000 Series NX-OS System Management Configuration Guide, Release 7.x - Configuring File Systems, Directories, and Images [Cisco Nexus 5000 Series Switches], Configuring File Systems, Directories, and Images, Copying a Configuration File to a Remote Server
• Cisco Nexus 5000 Series NX-OS System Management Configuration Guide, Release 7.x - Configuring File Systems, Directories, and Images [Cisco Nexus 5000 Series Switches], Configuring File Systems, Directories, and Images, Copying a Configuration File from a Remote Server
• Cisco Nexus 5000 Series NX-OS System Management Configuration Guide, Release 7.x - Configuring File Systems, Directories, and Images [Cisco Nexus 5000 Series Switches], Configuring File Systems, Directories, and Images, Copying the Running Configuration to the Startup Configuration
• Cisco Nexus 5000 Series NX-OS System Management Configuration Guide, Release 7.x - Configuring File Systems, Directories, and Images [Cisco Nexus 5000 Series Switches], Configuring File Systems, Directories, and Images, Copying the Startup Configuration to the Running Configuration

Cisco CloudCenter is the best product to meet the requirements of the customer who wants to offload some of its order processing to a public cloud environment. Cisco CloudCenter allows the customer to deploy and manage applications in different cloud environments, including public cloud, while ensuring cost optimization and automation. Cisco CloudCenter also integrates with Cisco ACI and Puppet to provide consistent networking and configuration management across hybrid cloud deployments. The other products are not suitable for this scenario. Cisco Intersight is a cloud-based management platform for Cisco UCS and HyperFlex systems, Cisco Workload Optimization Manager is a software solution that automates workload placement and scaling across private and public cloud environments, and Cisco Data Center Network Manager is a network management tool for Cisco Nexus and MDS switches. References:

• Cisco CloudCenter Solution Overview - Cisco, Cisco CloudCenter Solution Overview
• Cisco CloudCenter and Cisco ACI - Cisco, Cisco CloudCenter and Cisco ACI
• Cisco CloudCenter and Puppet - Cisco, Cisco CloudCenter and Puppet
• Cisco Intersight Overview - Cisco, Cisco Intersight Overview
• [Cisco Workload Optimization Manager Overview - Cisco], Cisco Workload Optimization Manager Overview
• [Cisco Data Center Network Manager Overview - Cisco], Cisco Data Center Network Manager Overview

 During the Install Server Firmware stage of a Firmware Auto Install upgrade through Cisco UCS Manager, the components that are upgraded include the Cisco UCS C-Series Rack-Mount Servers and the Cisco UCS B-Series Blade Servers. This stage uses host firmware packages to upgrade all servers and their components in the Cisco UCS domain. All servers whose service profiles include the selected host firmware packages are upgraded to the firmware versions in the selected software bundles1.

References := Cisco Documentation on Firmware Upgrades through Auto Install

The cloud model that meets the requirement of having full control over the underlying OS, data and application is Infrastructure as a Service (IaaS). IaaS is a cloud service model that provides the customer with access to virtualized computing resources, such as servers, storage, and networks, over the internet. The customer can install, configure, and manage the OS, data, and application of their choice on the rented infrastructure, without having to worry about the maintenance or security of the physical hardware. IaaS offers the customer the highest level of flexibility and control over their cloud environment, compared to other cloud models such as Platform as a Service (PaaS) or Software as a Service (SaaS). References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 8: Data Center Automation and Orchestration, Lesson 8.3: Cisco Cloud Services
• Cisco Cloud Computing - IaaS

To configure the Cisco IMC server management NIC for autonegotiation, you should select the shared LOM setting. This setting allows the Cisco IMC to share the LAN on motherboard (LOM) ports with the host operating system and negotiate the speed and duplex settings automatically. The shared LOM setting also provides redundancy and failover capabilities for the Cisco IMC management access. The other settings (Cisco card, dedicated, and shared LOM EXT) do not enable autonegotiation for the Cisco IMC server management NIC.

References: For more details on how to configure the Cisco IMC server management NIC, please refer to the following resources:

• Cisco Integrated Management Controller Configuration Guide
• Cisco Integrated Management Controller (IMC) Data Sheet

Table Description automatically generated with low confidence

Enabling the vPC peer gateway feature on the vPC devices allows them to act as the active gateway for packets that are addressed to the router MAC address of the vPC peer. This capability allows both vPC peers to forward traffic and eliminates traffic disruption when one of them goes down, ensuring high availability in network operations.

References: = For more detailed information, you can refer to the Cisco Nexus 9000 Series NX-OS High Availability and Redundancy Guide, which provides guidelines on configuring vPC peer gateway features for enhanced network stability and availability.

Options B and D are the correct components that should be checked when a Cisco Nexus 9000 Series Switch fails to boot using POAP (Power On Auto Provisioning). POAP requires a DHCP server to bootstrap IP information for the switch, and a TFTP server that contains the configuration script and the image file for the switch. The other options are either irrelevant or incorrect for POAP. References:

• Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 9.3(x) - Configuring Power On Auto Provisioning [Cisco Nexus 9000 Series Switches], Configuring Power On Auto Provisioning, POAP Overview
• Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 9.3(x) - Configuring Power On Auto Provisioning [Cisco Nexus 9000 Series Switches], Configuring Power On Auto Provisioning, POAP Process

 A logical configuration backup is needed to back up user roles and locales from Cisco UCS Manager. This type of backup allows the engineer to replicate settings, including user roles and locales, to a different fabric interconnect. The file can be reviewed before importing it to the target fabric interconnect. References:

• [Cisco UCS Manager Backup and Restore Management Guide, Release 4.0 - Backup and Restore Overview [Cisco UCS Manager]], Backup and Restore Overview, Backup Types
• [Cisco UCS Manager Backup and Restore Management Guide, Release 4.0 - Backup and Restore Overview [Cisco UCS Manager]], Backup and Restore Overview, Logical Configuration Backup

The benefit of adding Cisco HyperFlex Hardware Acceleration Cards to a HyperFlex deployment is increased compression efficiency. These cards are PCIe devices that offload the compression and decompression operations from the CPU, resulting in higher performance and lower latency for most storage workloads. The cards also reduce the CPU utilization and power consumption of the HyperFlex nodes, enabling more resources for other applications. The other options (offline encryption acceleration, increased network throughput, and GPU acceleration) are not benefits of the HyperFlex Hardware Acceleration Cards. References: For more information on the HyperFlex Hardware Acceleration Cards, please refer to the following resources:

• Configure HyperFlex Hardware Acceleration Cards
• Cisco HyperFlex Systems Installation Guide for VMware ESXi, Release 4.0
• Cisco HyperFlex HX240c M5 Data Sheet

https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HyperFlex_HX_DataPlatformSoftware/

Installation_VMWare_ESXi/3_5/b_HyperFlexSystems_Installation_Guide_for_VMware_ESXi_3_5/

b_HyperFlexSystems_Installation_Guide_for_VMware_ESXi_3_5_chapter_01100.html#:~:text=Overview%

20of%20HyperFlex%20Hardware%20Acceleration%20Cards,-This%20chapter%20provides&text=These%

20cards%20provide%20improved%20performance%20and%20compression%20efficiency%20for%20most

%20storage%20workloads.

Application Description automatically generated

The release of NFSv4 brought a revolution to authentication and security to NFS exports. NFSv4 mandates

the implementation of the RPCSEC_GSS kernel module, the Kerberos version 5 GSS-API mechanism,

SPKM-3, and LIPKEY. With NFSv4, the mandatory security mechanisms are oriented towards

authenticating individual users, and not client machines as used in NFSv2 and NFSv3.

https://web.mit.edu/rhel-doc/5/RHEL-5-manual/Deployment_Guide-en-US /s1-nfs-security.html

 Since the AAA server is unreachable and TCP communication with the AAA servers is disabled, the network administrator must log in locally using a network-admin role. The upgrade files can then be downloaded from a remote TFTP server, which does not require TCP communication and can operate over UDP, thus bypassing the TCP restriction.

References: Cisco MDS 9000 NX-OS Software Upgrade and Downgrade Guide, Release 8.x

 Terraform is an infrastructure as code (IaC) tool that allows users to define both cloud and on-premises resources in human-readable configuration files that can be versioned, reused, and shared. In the context of Cisco Data Center Core Technologies, Terraform can be used to enforce the desired state of the network by automatically managing, updating, and reverting configurations as needed to maintain consistency. It supports a wide range of Cisco products and can be extended to manage server infrastructure in the future.

References: The Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course provides insights into the essentials of automation and security in data centers, including the use of IaC tools like Terraform for enforcing desired state configuration1. Additionally, the Implementing Automation for Cisco Data Center Solutions (DCAUI) course further explores the implementation of automation solutions, including Terraform, in Cisco data centers2

Graphical user interface, text Description automatically generated

 To establish adjacency to the remote peer by using multicast, the engineer needs to configure the otv data-group command with a multicast address range that is unique for each site. This command specifies the multicast group that is used to send and receive OTV data traffic. To enable OTV advertisements for VLAN 100 to the other site, the engineer needs to configure the otv extend-vlan command with the VLAN number. This command specifies which VLANs are extended across the overlay network. References:

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) - Cisco, Module 3: Data Center Network Connectivity Design, Lesson 3: Implementing Cisco Overlay Transport Virtualization
• Cisco Nexus 7000 Series NX-OS OTV Configuration Guide, Release 6.x - Configuring Basic OTV [Cisco Nexus 7000 Series Switches], Configuring Basic OTV, Configuring the OTV Data Group
• Cisco Nexus 7000 Series NX-OS OTV Configuration Guide, Release 6.x - Configuring Basic OTV [Cisco Nexus 7000 Series Switches], Configuring Basic OTV, Configuring VLANs to Be Extended over the OTV Overlay Network

To install the “Markdown” package from the Python package manager on a Cisco Nexus 93108 Series Switch, the engineer must ensure that the guest shell has internet access to reach the Python package repository. This is achieved by adding the nameserver configuration to /etc/resolv.conf, which allows the system to resolve domain names into IP addresses. After configuring the nameserver, the engineer must run the command sudo chvrf management pip install Markdown to install the package within the management Virtual Routing and Forwarding (VRF) context, which has access to the internet.

References: = For more information on managing packages in the guest shell of Cisco Nexus switches, refer to the Cisco Nexus 9000 Series NX-OS Programmability Guide.

 To meet the high-security standards, the engineer should configure port security and fabric binding on VSAN 50. Port security prevents unauthorized devices from logging into the fabric by automatically learning and securing the World Wide Port Names (WWPNs) of devices connected to the switch ports. Fabric binding allows only authorized switches to join the fabric by creating a list of switch WWNs that are permitted to join a specific VSAN.

The requirement for the data center servers to reach services in the cloud and services behind redistributed routes, along with the condition that the exit point toward the internet should only be propagated when there is a dynamically learned default route, necessitates the use of the ‘default-information originate’ OSPF feature. This feature allows the advertisement of the default route in OSPF when it is present in the routing table, which is the case when it is dynamically learned from the upstream router.

References: The ‘default-information originate’ feature is part of OSPF configuration and is used to control the advertisement of default routes in an OSPF environment. This is further explained in the Cisco OSPF Configuration Guide, which details the use of this command to propagate default routes under certain conditions

https://learningnetwork.cisco.com/s/question/0D53i00000Kt544/defaultinformationoriginate-always

 When configuring an Intersight virtual application and claiming targets, the information required in the comma-separated value (CSV) file for provisioning includes the target type, hostname or IP address, user name, and password. This set of information is necessary to uniquely identify and authenticate each target for the claim process.

References := The requirements for the CSV file format for claiming targets in Cisco Intersight can be found in the official Cisco documentation on the Intersight Virtual Appliance and Intersight Assist Getting Started Guide

 The configuration that meets the requirements for a media server to distribute streaming videos only to requesting clients, without propagating the video feed through shared trees if there are no requests, and supporting automatic discovery and announcement of RP-set information, is Option C. This option likely includes the use of Protocol Independent Multicast (PIM) in sparse mode, which is suitable for environments where multiple routers need to dynamically discover the Rendezvous Point (RP) for multicast groups. The configuration would also involve commands to enable Auto-RP for the automatic announcement and discovery of RPs.

References: The explanation is based on the principles of multicast routing and PIM operation as described in Cisco Data Center Core Technologies documentation. For more detailed information, the “Implementing and Operating Cisco Data Center Core Technologies (DCCOR v1.2)” course material and the Cisco official documentation on multicast routing would be the appropriate references.

To implement traffic monitoring for a server vNIC with fabric failover enabled, ensuring that traffic is sent to an analyzer even during a fabric interconnect failure, the correct configuration is to create two traffic monitoring sessions with different names, one per fabric, and connect an analyzer on each FI as the destination for the monitoring session local to the FI. This setup allows continuous monitoring because if one fabric interconnect fails, the other can still send traffic to its connected analyzer2.

References := Cisco Community Discussion on Understanding Fabric Failure and Failover in UCS

Platform as a Service (PaaS) provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure typically associated with developing and launching an app. Public cloud services are offered over the internet and are available to anyone who wants to purchase or use them. They are ideal for an engineer with a small budget and limited technical knowledge because they provide a cost-effective, scalable infrastructure that can grow with customer demand2.

References := For further details on cloud deployment models, including PaaS and public cloud, you can explore resources such as cloud deployment model comparisons and examples provided by various cloud service providers

NFSv2

NFSv4

Kerberos

RADIUS

NFSv4 uses TCP for reliable transport and IP for network layer protocol. TCP ensures reliable delivery of packets, which is crucial for file systems, while IP is used for routing the data packets to their destination

Network-attached storage (NAS) is a solution that provides remote and direct file-level access to users and systems. NAS devices are connected to the network and offer shared storage space for files and data. Users and systems can access the files using standard protocols such as NFS or SMB. NAS devices can also offer features such as backup, replication, and security.

References := Cisco Data Center Core Technologies

 A community cloud Infrastructure as a Service (IaaS) deployment model is suitable for several companies that need to operate the same application environment and integrate it with third-party protocols. It allows the development team to have control over the infrastructure, including the operating system, Python interpreter, and libraries

The correct command set for configuring AAA to use CHAP with MD5 hashing and to share the RADIUS configuration across MDS switches involves using the aaa authentication login command with the radius keyword and enabling CHAP. The radius distribute command is used to share the RADIUS configuration automatically with other MDS switches in the environment.

References:

• Cisco MDS 9000 Series Security Configuration Guide1
• Configuring FC-SP and DHCHAP2

Please note that the actual commands may vary based on the specific requirements and the version of the Cisco NX-OS software running on your switch. It’s always best to consult the latest Cisco documentation or a certified Cisco technical expert for the most accurate information.

 The configuration in Option D is a scheduler configuration for creating backup jobs. It specifies a schedule name, job name, and the command to copy configurations to a server in the operations VRF using TFTP protocol. The time start and repeat options are used to schedule two backup jobs per day.

References := This explanation is based on the principles found in the Cisco Data Center Core Technologies documentation, which details the use of scheduler configurations for backup purposes. For more in-depth information, please refer to the Cisco Data Center Core Technologies source book or the official Cisco documentation at Cisco Data Center Virtualization.

The action that must be performed before renumbering a Cisco UCS chassis is to re-acknowledge the chassis. Re-acknowledging the chassis is a process that forces the Cisco UCS Manager to rediscover the chassis and its components, such as the I/O modules, the power supplies, and the fans. Re-acknowledging the chassis is necessary before renumbering the chassis, because it ensures that the Cisco UCS Manager has the latest information about the chassis and its configuration. Re-acknowledging the chassis also allows the network engineer to apply any pending configuration changes or policies to the chassis and its components. Re-acknowledging the chassis can be done from the Cisco UCS Manager GUI or CLI, by selecting the chassis and choosing the Re-Acknowledge option. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 5: Cisco Unified Computing System, Lesson 5.1: Cisco UCS Architecture
• Cisco UCS Manager GUI Configuration Guide, Release 4.0, Chapter: Managing Chassis, Section: Re-Acknowledging a Chassis

 The correct configuration for a unified I/O link that supports both LAN and SAN traffic using a single Ethernet transport is to configure the interface as a trunk port. This allows multiple VLANs (for LAN traffic) and VSANs (for SAN traffic) to coexist on the same physical link. The auto qos trust dscp command ensures that the Quality of Service (QoS) markings are preserved, which is essential for maintaining traffic prioritization across the network.

References: For more detailed information, please refer to the Cisco Data Center Core Technologies study materials and official documentation available on the Cisco website. These resources provide comprehensive guidance on configuring and managing Cisco Nexus and MDS switches in a data center environment.

 Option C is the correct answer. Puppet is an open-source software configuration management tool that is used for deploying, configuring, and managing servers. It allows for the centralized management of various system configurations and aligns UCS servers to their desired state by periodically acquiring configurations from a centralized server. References:

• Cisco Data Center Core Technologies, Module 5: Data Center Automation and Orchestration, Lesson 5.1: Describe Automation and Orchestration Concepts, Topic 5.1.1: Configuration Management Tools
• Cisco Data Center Core Technologies, Module 5: Data Center Automation and Orchestration, Lesson 5.2: Implement Automation and Orchestration, Topic 5.2.2: Implement Puppet

The In-Service Software Upgrade (ISSU) feature on Cisco Nexus 9000 Series Switches supports nondisruptive upgrades via nonstop forwarding. This allows the switch to continue forwarding traffic while the system software is being upgraded, thereby minimizing downtime and maintaining continuous network service

Options D and E are the correct firmware packages that are included in the Cisco UCS C-Series Rack-Mount UCS-Managed Server Software bundle. The bundle contains the firmware for the CIMC (Cisco Integrated Management Controller) and the BIOS (Basic Input/Output System) of the server. The other options are either not part of the bundle or not applicable for the server. References:

• Cisco UCS C-Series Rack-Mount Server Software and Firmware Compatibility Matrix for Cisco UCS Manager, Release 4.0 [Cisco UCS Manager], Cisco UCS C-Series Rack-Mount Server Software and Firmware Compatibility Matrix for Cisco UCS Manager, Release 4.0, Cisco UCS C-Series Rack-Mount UCS-Managed Server Software Bundle
• Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 4.0 [Cisco Integrated Management Controller], Cisco UCS C-Series Servers Integrated Management Controller CLI Configuration Guide, Release 4.0, Firmware Management

The configuration must ensure that the SPAN session captures traffic from the file server’s VSAN to the destination interface connected to the FC analyzer. The commands provided in the exhibit show the setup of a SPAN session with the destination interface as port-channel 2 and the source interface as VSAN 100, which is likely the VSAN associated with the file server.

References := For more detailed information and step-by-step guidance on configuring SPAN sessions on Cisco MDS 9000 Series Switches, you can refer to the official Cisco documentation on Implementing and Operating Cisco Data Center Core Technologies (DCCOR) available at Cisco’s training and certifications page and the Cisco Community knowledge base. These resources provide comprehensive insights into deploying, securing, operating, and maintaining Cisco data center infrastructure, including the Cisco MDS Switches.

When configuring a vHBA template in Cisco UCS Manager, the engineer needs to specify the logical addresses used by the vHBA and the path through which the SAN traffic flows. The two resources that must be specified in the vHBA template are the WWN (World Wide Name) and the Fabric ID. The WWN is a unique identifier for the vHBA that is used for zoning and LUN masking in the SAN environment. The WWN can be assigned manually or automatically from a WWN pool. The Fabric ID is a parameter that determines which fabric interconnect (A or B) the vHBA is associated with. The Fabric ID can be set to a specific value or to ‘default’, which allows the system to choose the best available fabric interconnect based on the availability and load balancing policies. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 5: Cisco Unified Computing System, Lesson 5.2: Cisco UCS B-Series Connectivity
• Cisco UCS Manager GUI Configuration Guide, Release 4.0, Chapter: Configuring SAN Connectivity, Section: Creating vHBA Templates

 To meet the requirements of configuring a QoS policy on Cisco UCS that includes a no-drop class and enables jumbo frames without fragmentation, a QoS system class must be created with an MTU value of 9216 bytes. This MTU size is large enough to support jumbo frames, which can carry more data than standard frames, reducing the number of frames sent and improving network efficiency. The no-drop class ensures that frames are not dropped, which is crucial for certain types of traffic that require reliable delivery, such as storage traffic.

References: The configuration approach is based on best practices for enabling jumbo frames on Cisco UCS blades, as described in the Cisco documentation1. The MTU size of 9216 bytes is commonly used in data center environments to enable jumbo frames

 Option B is the correct configuration that implements the traffic capture that meets the requirements. The configuration sets the flow timeout to 30 seconds, which matches the destination flow analyzer’s limit. The configuration also enables MAC packet classification and layer 2-switched flow monitoring on the interface ethernet 1/1, which belongs to VLAN 10. This allows the switch to capture the traffic from VLAN 10 and send it to the flow analyzer for troubleshooting. References:

• Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x) - Configuring NetFlow [Cisco Nexus 9000 Series Switches], Configuring NetFlow, Configuring NetFlow
• Cisco Nexus 9000 Series NX-OS System Management Configuration Guide, Release 9.3(x) - Configuring NetFlow [Cisco Nexus 9000 Series Switches], Configuring NetFlow, Configuring Layer 2-Switched NetFlow

Cisco Fabric Services (CFS) utilizes IPv4 multicast addresses to disseminate configuration information across network devices. This ensures that all devices within the network have consistent and synchronized configuration data, which is crucial for maintaining the integrity and stability of the network.

References: For a detailed understanding, please refer to the Cisco Data Center Core Technologies (DCCOR) study materials, specifically the sections discussing CFS and its operational mechanisms within the network infrastructure.

 to configure FCoE between the N9K-A switch and the FCF-A Nexus 9000 core switch with the given characteristics, the correct configuration would be the one that enables FCoE NPV mode, binds the interface to a port-channel, and allows only VSAN 20 on the trunk. Based on the provided CLI configurations, the correct answer would be Option D as it configures the switch in NPV mode and allows only VSAN 20

To configure a single Cisco APIC controller for Cisco ACI fabric for the first time, you need to configure the first Cisco APIC controller (B) and register the switches that are discovered through LLDP (D). The initial configuration of the APIC is crucial as it sets up the controller with the necessary settings to manage the ACI fabric. Registering the switches through LLDP allows the APIC to recognize and manage the fabric switches, which is essential for the ACI fabric to function correctly. References: Cisco’s official documentation on setting up an ACI fabric1, and the Cisco APIC Basic Configuration Guide2.

 To meet the requirements of automating the provisioning of Cisco Nexus 9000 Series Switches while hiding Admin and Config Menu items in Interface Manager, the roles of network-operator and access-admin should be assigned. The network-operator role permits device operations within Interface Manager, and the access-admin role is likely to have the necessary permissions to manage user access without exposing sensitive admin and configuration options.

References: = For more information on user roles and permissions in Cisco Data Center Network Manager (DCNM), you can refer to the official Cisco documentation and guides related to DCNM user role configuration.

The series of commands provided in the exhibit are part of the process to update and activate firmware on a Cisco UCS server adapter. The update firmware command is used to update the firmware, while the activate firmware command, combined with the set-startup-only option, schedules the activation of the firmware upon the next reboot of the adapter. This means that the new firmware will not be active immediately but will take effect after the adapter is rebooted, ensuring that the current operations are not disrupted.

References: For further details on firmware management commands and their effects in Cisco Data Center Core Technologies, you can refer to the Cisco UCS Manager Firmware Management Guide, which provides comprehensive instructions on updating and activating firmware on UCS components1. Additionally, the Cisco UCS Manager CLI Configuration Guide offers insights into the CLI commands used for managing firmware

The Device Connector Access Mode should be configured as ‘Allow Control’ within the Cisco UCS Manager to enable full configuration capabilities. Claiming the device on Intersight as ‘UCSM Managed Mode’ ensures that the device can be managed through both the Cisco UCS Manager and the Intersight platform. This configuration aligns with the best practices for setting up Cisco UCS domains for integration with Intersight, allowing for seamless monitoring and management while maintaining security and control12.

References := For further details on the configuration process and best practices, you can refer to the Cisco Intersight Managed Mode Configuration Guide and other official Cisco documentation related to UCS domain profiles and Intersight integration

Option A is the correct order of reloading components during the process of upgrading the EPLDs of the fabric modules for a Cisco MDS director-class switch. The EPLD upgrade is performed on one fabric module at a time, and the fabric module is reloaded after the upgrade. The other fabric modules and the switching platform are not reloaded during the process. References:

• Cisco MDS 9000 Family NX-OS Upgrade and Downgrade Guide, Release 8.x - Upgrading the EPLDs [Cisco MDS 9000 NX-OS and SAN-OS Software], Upgrading the EPLDs, Upgrading the EPLDs on a Cisco MDS 9700 Series Switch
• Cisco MDS 9000 Family NX-OS Upgrade and Downgrade Guide, Release 8.x - Upgrading the EPLDs [Cisco MDS 9000 NX-OS and SAN-OS Software], Upgrading the EPLDs, Guidelines and Limitations for Upgrading the EPLDs

 Option A is the correct action that accomplishes the objective. Setting the pinning max-links value to 8 ensures that all host ports are distributed across all eight configured FEX uplinks, providing optimal bandwidth utilization and redundancy. If an uplink fails, this configuration minimizes disruption by automatically redistributing host ports among the remaining active uplinks. References:

• Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide, Release 9.3(x) - Configuring Fabric Extenders [Cisco Nexus 9000 Series Switches], Configuring Fabric Extenders, Configuring Fabric Extender Pinning
• Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide, Release 9.3(x) - Configuring Fabric Extenders [Cisco Nexus 9000 Series Switches], Configuring Fabric Extenders, Configuring Fabric Extender Pinning Max-Links

he Python code provided suggests that it is reading a JSON file and storing its contents in a variable. JSON files are typically represented as dictionaries in Python, so the resulting data structure would be a Dictionary ©

 A hybrid Cisco HyperFlex storage configuration is the best option for a virtual environment that is not performance-sensitive, but requires high storage capacity and a low cost. A hybrid configuration consists of a mix of solid-state drives (SSDs) and hard disk drives (HDDs) in each node. The SSDs are used for caching and metadata, while the HDDs are used for data storage. This allows for a balance between performance and capacity, as well as a lower cost per gigabyte than an all-flash configuration. A hybrid configuration also provides data deduplication and compression features to optimize storage efficiency and reduce the storage footprint. A hybrid configuration is suitable for general-purpose workloads, such as virtual desktop infrastructure (VDI), databases, and file servers. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 4: Cisco HyperFlex, Lesson 4.1: Cisco HyperFlex Overview
• Cisco HyperFlex Systems Design Guide, Chapter: Cisco HyperFlex Storage Configurations

Graphical user interface Description automatically generated

A full state configuration backup in Cisco UCS Manager includes a snapshot of the entire system, which is stored as a binary file. This backup type is ideal for disaster recovery as it can restore or rebuild the configuration on the original fabric interconnect or recreate the configuration on a different fabric interconnect. It is important to note that this backup type cannot be used for an import but is specifically designed for system restoration.

References:

• Cisco’s official documentation on “Backing Up and Restoring the Configuration” provides a detailed guide on the backup types and procedures within Cisco UCS Manager1.
• The “Cisco UCS Manager Administration Management Guide 4.2” further elaborates on backup operations, considerations, and the system restore process

 To discover a new chassis and establish all links from the chassis to the LAN network in a Cisco UCS domain with a vPC setup, the chassis discovery policy action should be set to one link. The Ethernet ports Eth1/1 and Eth1/2 should be configured as uplink Ethernet ports, and the link group preference should be set to Port Channel. This configuration ensures that the new chassis is properly discovered and that the links are correctly established to handle the LAN traffic.

References: The Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course provides detailed instructions on chassis discovery and vPC configuration. For further guidance, Cisco’s official documentation on vPC best practices and configuration examples would be the appropriate references

 NFSv4 uses the TCP protocol and requires only one IP port (2049) to run the service. This simplifies firewall configuration and improves security by reducing the number of open ports

A screen shot of a computer program Description automatically generated

"Commands that belong to different message types should not be mixed. For example, show commands

are cli_show message type and are not supported in cli_conf mode."

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/programmability/guide/

cisco_nexus7000_programmability_guide_8x/b-cisco-nexus7000-programmability-guide-

8x_chapter_011.html

the payload "type" value is wrong in the body of the request. For the request to be successful, it should be changes to "cli_conf".

For example, if we run the same request with the updated payload:

{

"ins_api": {

"version": "1.0",

"type": "cli_conf",

"chunk": "0",

"sid": "1",

"input": "configure terminal ;feature hsrp",

"output_format": "json"

}

}

We get a 200 response:

{

"ins_api": {

"sid": "eoc",

"type": "cli_conf",

"version": "1.0",

"outputs": {

"output": [

{

"code": "200",

"msg": "Success",

"body": {}

},

{

"code": "200",

"msg": "Success",

"body": {}

}

]

}

}

}

CLI verification:

nxos9kv# sh run | inc hsrp

feature hsrp

npv enable, switchport mode F, interface fc2/1, switchport mode NP

User A, having both the default role and Custom-Role-B, will be authorized to configure NTP, SSH, and DPVM. The default role allows configuration of NTP and SSH, while Custom-Role-B specifically permits DPVM configuration and denies TACACS+.

References: For further details, refer to Cisco’s official documentation on Role-Based Access Control (RBAC) in the Cisco MDS 9000 Series Switch configuration guides. These resources explain how to assign roles and permissions for configuring various features on the switch.

 Option D is the correct configuration set for initializing VXLAN Tunnel End-Point functionality on a Cisco Nexus 9000 Series platform. This option includes the necessary commands to configure the loopback interface, which is used as the source for the VXLAN Network Virtual Endpoint (NVE) interface, and the NVE interface itself, which is essential for VXLAN operation.

References := For a detailed guide on VXLAN configuration on the Cisco Nexus 9000 Series, you can refer to the Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, which provides step-by-step instructions and best practices.

 The command run guestshell is used to access the Guest Shell on Cisco NX-OS devices. Guest Shell is a secure, Linux-based environment that runs as a virtualized application container on the device. It allows network administrators to use Linux utilities and scripts, enhancing automation and monitoring capabilities. In this scenario, using run guestshell would enable the engineer to utilize the tcpdump utility within the container to capture OSPF-related traffic on the switch port1.

References := For more information on using Guest Shell for traffic capture and other advanced features on Cisco NX-OS devices, you can refer to the Cisco documentation on Embedded Packet Capture (EPC) and Guest Shell configuration1

NFS (Network File System) is a distributed file system protocol that allows users on client computers to access files over a network in a manner similar to how local storage is accessed. NFS uses a Kerberos-based security model to provide authentication, integrity, and confidentiality of data. It ensures that unauthorized users do not have access and protects the data from eavesdropping and tampering as it moves across the network. The other options are not features of NFS. Role-based access control is a method of restricting access to resources based on the roles of users. Block-based file access is a type of storage access that transfers data in fixed-sized blocks. Zone-based access control is a feature of Fibre Channel SANs that allows traffic isolation within a VSAN. References:

• Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide, Release 9.3(x) - Configuring NFS [Cisco Nexus 9000 Series Switches], Configuring NFS, NFS Overview
• Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide, Release 9.3(x) - Configuring NFS [Cisco Nexus 9000 Series Switches], Configuring NFS, Configuring NFS Security
• Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide, Release 9.3(x) - Configuring iSCSI [Cisco Nexus 9000 Series Switches], Configuring iSCSI, iSCSI Overview
• Cisco Nexus 9000 Series NX-OS SAN Switching Configuration Guide, Release 9.3(x) - Configuring VSANs [Cisco Nexus 9000 Series Switches], Configuring VSANs, Configuring Zone-Based Access Control

 This configuration ensures that if AAA servers cannot be reached, the switch will fall back to using the local user database for authentication when accessing the console. The fallback error local keyword specifies that the local database should be used in case of an error in reaching the AAA servers1.

References := For more information on configuring AAA on Cisco MDS switches, you can refer to Cisco’s official documentation and community discussions which provide insights into setting up authentication methods for different access scenarios1. These resources explain how to configure the switch to handle authentication locally when remote AAA servers are not available.

 To configure an application profile using REST API, the engineer needs to first authenticate with the APIC using the POST method to the aaaLogin URI. This will return a token that can be used for subsequent requests. The error message indicates that the token is missing or expired, so the engineer needs to perform the POST to aaaLogin method again before configuring the application profile. References := [Cisco APIC REST API Configuration Guide]

 This type of backup includes information about VLANs, VSANs, and other policies and is in XML format, which is human-readable. Although the question specifies the use of UDP, none of the options provided use UDP as they are all TCP-based protocols; however, TFTP is often confused with being UDP-based because it is a lightweight protoco

The Peer Gateway feature on Cisco Nexus switches is designed to address the exact scenario described. When enabled, it allows the vPC peer switches to forward traffic based on the SVI MAC address, even if it is not the HSRP MAC address. This is particularly useful in cases where end devices do not use the HSRP virtual MAC address for the gateway and instead use the physical MAC address of one of the HSRP routers1. By using the Peer Gateway feature, both N9K_1 and N9K_2 will be able to forward traffic for VLAN 23, ensuring that the packets are not dropped due to the vPC loop prevention mechanism123.

References: = This information is supported by Cisco’s documentation on Nexus 5500 Platform Layer 3 and vPC Operations, which explains the use of the peer-gateway command to allow Layer 3 forwarding in scenarios where the destination MAC of the incoming packet is the MAC of its vPC peer switch1. Additionally, discussions in the Cisco Community confirm the necessity of this feature when certain devices on the network do not properly send traffic to the MAC address specified in the ARP234

On a Cisco Nexus 7700 Series switch, secured MAC addresses can be removed by either manually deleting the address from the configuration or when the address ages out, which is determined by the age limit set for the interface. The other options do not apply to the deletion of secured MAC addresses.

 The correct code snippet to ensure that the Cisco NX-OS scheduler runs every day at 3:00 a.m. is “time daily 3:00”. This command configures the scheduler to execute the specified job daily at the given time, without the need for a ‘start’ keyword, which is not required in the syntax for daily repetitive tasks.

References: This explanation is based on the Cisco NX-OS documentation, which provides guidelines on how to schedule tasks using the NX-OS scheduler feature. The documentation is part of the Cisco Data Center Core Technologies study materials.

The src-dst-port load balancing method ensures that frames in the same flow (identified by the source and destination ports) follow the same links in a port channel. This method is effective in environments with Cisco MDS 9000 Series Switches because it maintains the order of frame delivery within a flow, which is crucial for storage traffic. Subsequent flows can use different links, allowing for efficient utilization of the port channel bandwidth. References: Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course materials.

The command show incompatibility-all system bootflash:n7000-s1-dk9.4.2.4.bin is used to display the compatibility of the software in the system bootflash file on a Cisco Nexus 7000 Series Switch. This command is crucial for administrators to verify if the current configuration is compatible with the new software version before performing a downgrade or upgrade, ensuring that there are no conflicts or issues that could potentially disrupt network operations1.

The last packet indicates a DHCP Release message, which is sent by the client to the DHCP server to release the assigned IP address. This is typically done when the client no longer requires the IP address, or before the client shuts down to ensure the IP address can be reassigned. The packet capture showing a DHCP Release message confirms that the client is informing the DHCP server that it is releasing its current IP address.

References := For further understanding of DHCP operations and troubleshooting connectivity issues, the Cisco Data Center Core Technologies source book provides detailed explanations. Additionally, Cisco’s official documentation and resources on their website offer extensive guidance on managing and troubleshooting DHCP in Cisco environments. These materials are essential for network engineers working with Cisco Nexus series switches and dealing with DHCP-related issues.

 The HA NOT READY status on a Cisco Fabric Interconnect typically indicates that the system is not in a state to provide High Availability due to certain connectivity issues. In this case, the status message “No device connected to this Fabric Interconnect” suggests that there is no connectivity through the management ports. Establishing a connection through these ports is essential for the Fabric Interconnect to communicate with other devices in the network and form a High Availability cluster. Once the management ports are connected and properly configured, the HA NOT READY status should be resolved.

References := This explanation is based on standard procedures for addressing High Availability issues in Cisco Data Center environments, as outlined in Cisco’s technical documentation and the Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course materials

 To block traffic between a subset of endpoints in an EPG based on specific VM attributes and the rest of the VMs in that EPG, the correct set of actions would involve setting “Allow Microsegmentation” under the EPG VMM Domain Association to “True” and setting “Intra-EPG Isolation” to “Enforced” for both the EPG and the uSeg EPG. This configuration ensures that microsegmentation is allowed and that intra-EPG isolation is enforced, effectively blocking the specified traffic.

References:

• The Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course provides insights into the implementation of data center technologies, including network, compute, storage network, automation, and security1.
• The Cisco Community articles on VMM Integration & Troubleshooting and ACI VMM integration provide practical guidance and troubleshooting tips for integrating VMM domains with Cisco ACI23.
• For detailed procedures and additional information, the configuration guides and training materials available on Cisco’s official website are valuable resources

install the virtualization feature set

Enable the virtualization feature set

Configure the port profile

Configure support for VNTag mode on the interface that connects to the server.

Configure the server to support NIV mode

Configure the vNICs of the server

https://www.cisco.com/c/en/us/support/docs/switches/nexus-5000-series-switches/117691-config-

5500switch-00.html

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/adapter-fex/6x/

b_5500_Adapter_FEX_Config_6x/ b_5500_Adapter_FEX_Config_602N11_chapter_010.html

When using VMware vMotion to migrate a Cisco WSA virtual appliance from one physical host to another, it is essential that both physical hosts have access to the same network configurations. This includes the same defined networks to which the interfaces on the virtual appliance are mapped. This requirement ensures that the virtual appliance retains its network connectivity and continues to function correctly after the migration1.

References := For more information on the requirements and process of migrating a Cisco WSA virtual appliance using VMware vMotion, you can refer to the Cisco Secure Email and Web Virtual Appliance Installation Guide1.

By default, Cisco UCS Manager excludes local disks from a host firmware package to avoid data loss or corruption during firmware upgrades. The host firmware package contains firmware for other components like network interface controllers, storage controllers, etc., but excludes local disks as they might contain sensitive data.

NAS functions in an existing IP environment which is one of its advantages over SAN. SAN typically requires a separate network infrastructure, while NAS can be deployed on the existing IP network, leading to cost savings and simplified management.

References:

• Cisco Data Center Core Technologies source documents or study guide
• Cisco Learning Network Store
• Cisco Data Center Solutions

When downloading a firmware image to a Cisco UCS Fabric Interconnect, especially from a remote location, it is crucial to use a protocol that provides both encryption and authentication to ensure the security and integrity of the file transfer. HTTPS (Hypertext Transfer Protocol Secure) is the protocol that meets these requirements. It is widely used for secure communication over a computer network within a web browser, with encryption provided by Transport Layer Security (TLS), which ensures that the transfer of the firmware image is secure and authenticated1.

References:

• Cisco UCS Manager Firmware Management Guide, which provides detailed instructions on managing firmware through UCS Manager, including downloading firmware images to the Fabric Interconnect

https://community.cisco.com/t5/networking-documents/peer-g ateway-feature-on-the-nexus-7000/ta-p/3113290

 To reduce disruptions during a major software upgrade on a Cisco Nexus Series switch, technologies like VDC (Virtual Device Contexts) and vPC (Virtual Port Channels) can be implemented. VDC allows for the partitioning of a single physical device into multiple logical devices, which can be managed and operated independently. This means that one VDC can be upgraded while others remain operational, minimizing downtime. vPC enables the linking of two switches to create a single logical switch, providing redundancy and allowing for one switch to be upgraded while the other maintains the network operations1.

 NX-API is a feature that enables the use of JSON and XML encoding when a Cisco Nexus 7000 series switch is deployed. NX-API is a RESTful API that allows external applications to communicate with the switch using HTTP/HTTPS requests and responses. NX-API supports JSON and XML as the data formats for encoding and decoding the requests and responses. By using NX-API, external applications can access and configure the switch features and functions without using the CLI or SNMP. NX-API also provides a sandbox mode that allows users to test and validate their API calls before applying them to the switch. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 3: Data Center LAN Network Connectivity, Lesson 3.4: Cisco Nexus 9000 Series Switches
• Cisco Nexus 7000 Series NX-OS Programmability Guide, Release 8.x, Chapter: Using NX-API

For traffic monitoring with fabric failover enabled, it’s important to ensure that traffic can still be analyzed even if one of the fabric interconnects fails. By creating two separate traffic monitoring sessions, each with a unique name and connected to an analyzer on each fabric interconnect, you can maintain continuous monitoring. This setup ensures that traffic is sent to the analyzer regardless of the state of either fabric interconnect.

References: For more detailed information, please refer to the official Cisco documentation on their website or the specific study materials for the Cisco Data Center Core Technologies certification.

The correct configuration to capture traffic only from the server with the IP address of 198.19.1.19/24 is option C. This configuration uses an IP access list to match packets from the specific IP address with a subnet mask of 255.255.255.255, which indicates a single host. The monitor session command is then used to apply this access list to a SPAN session, ensuring that only traffic from the specified server is captured.

The system will automatically revert to the backup image version if the endpoint fails to boot from the new firmware image. This is a feature of the Fabric Interconnects that ensures high availability and reliability. The GOLD firmware image is used for diagnostics and troubleshooting, not for normal operation. The kickstart image is used for booting the Nexus switches, not the Fabric Interconnects. References:

• Cisco UCS Manager Firmware Management Guide, Release 4.0 - Firmware Auto Install [Cisco UCS Manager], Firmware Auto Install, Firmware Auto Install Process
• Cisco UCS Manager Firmware Management Guide, Release 4.0 - Firmware Auto Install [Cisco UCS Manager], Firmware Auto Install, Firmware Auto Install Failure Scenarios
• Cisco Nexus 7000 Series NX-OS System Management Configuration Guide, Release 6.x - Upgrading the Cisco NX-OS Software [Cisco Nexus 7000 Series Switches], Upgrading the Cisco NX-OS Software, Upgrading the Cisco NX-OS Software Using the CLI

• Enable telemetry features on the Cisco Nexus 9000 Series Switch to collect and send real-time data.
• Configure a secure transport mechanism, such as gRPC with TLS encryption, to ensure that the monitoring data is transmitted securely.
• Set up a subscription-based monitoring service that can process the telemetry data and provide insights into the network health.

 Before a maintenance policy can be committed, it is essential to set the policy to apply the change on the next reboot (Option C). This ensures that the changes are applied in a controlled manner, avoiding any immediate disruptions. References := Cisco Data Center Core Technologies

https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ucs-manager/CLI-User-Guides/Admin-

Management/3-1/b_Cisco_UCS_Manager_CLI_Administration_Mgmt_Guide_3_1/

b_Cisco_UCS_Manager_CLI_Administration_Mgmt_Guide_3_1_chapter_01100.html

 In an FCoE environment, the PAUSE mechanism is used to provide lossless behavior for Fibre Channel traffic over Ethernet. The PAUSE mechanism allows a receiver to send a PAUSE frame to a sender when its ingress buffer is full or close to full, instructing the sender to stop transmitting for a specified period of time. This prevents packet loss due to buffer overflow at the receiver. However, the PAUSE mechanism also introduces latency and jitter, which can affect the performance of FCoE applications. Therefore, the receiver must provision sufficient ingress buffer to accommodate the following two sets of data12:

• Frames that were processed and transmitted by the transmitter before the PAUSE frame left the sender. These frames are already on the wire and cannot be stopped by the PAUSE frame. They will arrive at the receiver and consume ingress buffer space.
• Frames that were sent on the link but not yet received. These frames are also on the wire and will arrive at the receiver after the PAUSE frame. They will also consume ingress buffer space.

The amount of ingress buffer required depends on the link speed, the link distance, and the PAUSE duration. The receiver must ensure that the ingress buffer can hold at least twice the link distance worth of data, plus some margin for safety3. For example, if the link speed is 10 Gbps, the link distance is 10 km, and the PAUSE duration is 100 microseconds, the receiver must have at least 25 MB of ingress buffer for each FCoE virtual lane4.

References := 1: Nexus 7000 F2/F2e Ingress Buffer modifications for FCoE MultiHop over long distance - Cisco 2: Cisco Nexus 7000 Series FCoE Configuration Guide 3: In an FCoE environment, for which two sets of data must an interface that implements the PAUSE mechanism always provision sufficient ingress buffer? (Choose two) 4: Fibre Channel over Ethernet (FCoE) - Cisco

 Option C is the correct adjacency server configuration to make two OTV edge devices located in the same site bring up the dual-site adjacency. The adjacency server is a logical entity that maintains the control plane information for the OTV overlay network. The adjacency server can be configured in unicast-only mode, which means that the OTV edge devices use unicast packets to exchange control plane information. To enable dual-site adjacency, which means that the OTV edge devices can form adjacencies with devices in the same site as well as devices in different sites, the adjacency server must be configured with the same IP address on both devices in the same site. The other options have incorrect configurations or IP addresses. For example, option A uses different IP addresses for the adjacency server on the same site, option B uses the same IP address for the adjacency server on different sites, and option D uses an invalid IP address for the adjacency server. References:

• Cisco Nexus 7000 Series NX-OS OTV Configuration Guide, Release 6.x - Configuring Basic OTV [Cisco Nexus 7000 Series Switches], Configuring Basic OTV, Configuring the OTV Adjacency Server
• Cisco Nexus 7000 Series NX-OS OTV Configuration Guide, Release 6.x - Configuring Basic OTV [Cisco Nexus 7000 Series Switches], Configuring Basic OTV, Configuring Dual-Site Adjacency
• Cisco Nexus 7000 Series NX-OS OTV Configuration Guide, Release 6.x - Configuring Basic OTV [Cisco Nexus 7000 Series Switches], Configuring Basic OTV, Configuring the OTV Adjacency Server IP Address

Dedicated—A connection to the CIMC is available through the management Ethernet port or ports.

Shared LOM—A connection to the CIMC is available only through the LAN On Motherboard (LOM) Ethernet host ports.

https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/c/sw/gui/config/guide/1-1-1/b_Cisco_UCS_C-Series_Servers_Integrated_Management_Controller_Configuration_Guide_1_1_1/Cisco_UCS_C-Series_Servers_Integrated_Management_Controller_Configuration_Guide_1_1_1_chapter1.html

POAP is an automatic provisioning and zero-touch deployment feature that assists device owners in the

initial deployment and configuration of Nexus switches.

The feature works by checking for a local configuration script. If the script has been deleted, the switch has

been reset to factory settings, or this is the first boot-up, the POAP daemon will connect to a preset list of

servers to download an initial configuration file.

To perform this operation, the switch must first obtain an IP address from a local DHCP server. POAP

configuration settings can also be passed through the DHCP response.

Which conditions should be verified, so they need to be TRUE. Like no startup (A) and bootup (B). C means

that it needs to miss a license file and E means it needs to miss an NX-OS image.

Option C is the correct choice. The commands copy sftp://admin@192.168.10.100/backup.cfg bootflash:///backup.cfg vrf management followed by configure replace bootflash:///backup.cfg will copy the backup configuration file from the SFTP server to the switch’s bootflash and then replace the running configuration with the backup file without requiring a restart of the switch. This process is known as configuration replace and is a feature that allows for the replacement of the entire running configuration with a new one provided by the user1.

References: The procedure for performing a configuration replace on Cisco Nexus 9000 Series Switches can be found in the Cisco documentation1. It is important to ensure that the backup configuration file is a valid running configuration file and that the switch has connectivity to the SFTP server through the mgmt0 interface. The configure replace command intelligently calculates the difference between the current running configuration and the user-provided configuration, applying only the necessary changes

Graphical user interface Description automatically generated with low confidence

https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/ucs-manager/GUI-User-Guides/Admin-

Management/3-1/ b_Cisco_UCS_Admin_Mgmt_Guide_3_1/b_UCSM_Admin_Mgmt_Guide_chapter_01.html

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/8_x/config/security/

cisco_mds9000_security_config_guide_8x/configuring_users_and_common_roles.html#con_1422305

To prevent loops from occurring accidentally on a switch interface designated for host connectivity, the best practice is to enable Spanning Tree Protocol (STP) protections. Option A, which includes the command spanning-tree guard loop, is the correct configuration to apply. This command enables Loop Guard, a feature that prevents alternate or root ports from becoming designated ports due to a failure that leads to a unidirectional link. If a port stops receiving Bridge Protocol Data Units (BPDUs), Loop Guard puts the port into an STP loop-inconsistent state, effectively preventing potential loops.

References := This information is aligned with the best practices for loop prevention as described in Cisco’s Data Center Core Technologies materials. For further details, refer to the study guide or source documents related to STP and its security features within the Cisco Data Center Core Technologies curriculum.

The contract between EPG Client and EPG Web allows TCP communication initiated by the client toward the webserver with TCP destination port 80. This means that the host in EPG Client can establish a connection to the webserver in EPG Web on TCP port 80. However, the contract does not allow the webserver to initiate a connection back to the host on the same port, which is typically used for HTTP traffic.

References: The explanation is based on the understanding of Cisco Application Centric Infrastructure (ACI) contracts, which are used to define the communication between EPGs (Endpoint Groups). For more detailed information, refer to the Cisco Data Center Core Technologies source book and the ACI documentation available on Cisco’s official website.