EMC D-ISM-FN-23 Dell Information Storage and Management Foundations 2023 Exam Exam Practice Test

an interface is a logical connection that enables data transfer between devices. There are different types of interfaces that can connect SSD drives to the storage array controller, such as SATA, SAS, PCIe, and NVMe.

One of the types of interface that can connect SSD drives to the storage array controller is NVMe1. NVMe stands for Non-Volatile Memory Express and it is a protocol that enables high-performance communication between SSDs and PCIe bus. NVMe reduces latency and increases throughput by using multiple parallel queues and direct memory access.

Incremental backups offer the advantage of significantly reducing the storage capacity needed for backups compared to cumulative backups. Incremental backups only capture and store the data that has changed since the last backup, which minimizes the amount of data stored. This is more efficient than cumulative backups, which capture all changes since the last full backup, leading to larger storage requirements.

References:

• Dell Information Storage and Management V5 course materials, section on backup methods
• Dell EMC documentation on incremental and cumulative backups

The Mean Time to Repair (MTTR) is calculated by averaging the repair times of the failed component. For Port 4, the failures and repair durations are as follows:

• Monday: 8 PM to 11 PM (3 hours)
• Wednesday: 7 PM to 10 PM (3 hours)
• Thursday: 6 AM to 12 PM (6 hours)

Total downtime = 3 + 3 + 6 = 12 hours Number of failures = 3

MTTR = Total downtime / Number of failures = 12 hours / 3 = 4 hours

References: Dell Information Storage and Management V5 Course Materials, Reliability, Availability, and Serviceability (RAS) Section.

RAID 1 mirrors data, meaning it duplicates the data on two disks. Therefore, to provide 250 GB of usable storage, 500 GB of total storage is required (250 GB for the primary data and 250 GB for the mirrored copy). At a cost of $2 per GB, the chargeback amount is calculated as follows:Chargeback amount=500 GB×$2/GB=$1000Chargeback amount=500GB×$2/GB=$1000

References:

• Dell EMC Education Services (https://education.dell.com/content/emc/en-us/home/certification-overview/find-exam/ismv41.html)
• (https://home.pearsonvue.com/dell)

• Object-Based Storage Device (OSD): OSDs manage data as objects, which contain the data itself, metadata, and a globally unique identifier.
• Address Space: In object storage, all objects exist at the same level in a flat address space, meaning there is no hierarchical structure like in traditional file systems.
• Namespace: Object storage systems use a single namespace to manage objects, making it easier to scale and manage large amounts of data.

References: Dell ISM V5 Course, Module on Object-Based Storage Systems.

The controller in an intelligent storage system is responsible for various management functions, including replication and storage management. It acts as the brain of the storage system, coordinating data storage, retrieval, and replication processes to ensure data availability and integrity. Controllers manage both hardware components (such as disks and solid-state drives) and software functions (like data deduplication, compression, and RAID configuration). By managing replication, the controller ensures that data copies are maintained across different storage arrays or locations, providing redundancy and facilitating disaster recovery.

References:

• Dell EMC Information Storage and Management V5 Course, Module 4: Intelligent Storage Systems.
• Dell EMC ISM V5 Student Guide, Page 78-79.

HDFS (Hadoop Distributed File System) is a file system that provides a streaming interface using the MapReduce framework. HDFS is designed to store large volumes of data across many machines and provides high-throughput access to this data. The MapReduce framework allows for processing and generating large datasets with a distributed algorithm on a cluster. HDFS's architecture is optimized for handling large files and supports operations such as writing data once and reading many times, making it ideal for big data analytics and processing tasks.

References: Dell Information Storage and Management V5 course material -Dell Education

Dell EMC PowerScale is designed to handle both file and object storage. It provides a scalable and flexible storage solution that can manage unstructured data in various formats.

References: Dell EMC ISM V5 Module 6, "Storage Solutions," includes information on different Dell EMC products and their capabilities.

REST (Representational State Transfer) is an architectural style that supports the development of scalable and lightweight web applications. It is based on a resource-oriented architecture and adheres to a set of constraints such as stateless communication and the use of standard HTTP methods. RESTful APIs are widely used in Software-Defined Storage (SDS) environments to interact with and manage storage resources efficiently.References: Dell Information Storage and Management V5, Software-Defined Storage,Dell Certification Resource

FC SANs components include network adapters, cables, and interconnecting devices. The interconnecting devices can be FC switches or FC directors, which are more scalable and reliable than FC hubs. The ports on these devices can be FC E_Ports, which connect two switches or directors together to form a fabric, or FC F_Ports, which connect to host or storage devices with FC N_Ports.

Amazon S3 (Simple Storage Service) is a cloud-based file sharing protocol that provides file sharing through a REST API interface. S3 allows users to store and retrieve any amount of data at any time, using a simple web interface. It is widely used for cloud storage and integrates seamlessly with various applications and services.References:= Dell Information Storage and Management V5 course materials

The Dell EMC ViPR Controller is a software-defined storage (SDS) platform that abstracts, pools, and automates a data center’s physical storage infrastructure. It provides a unified storage management platform that simplifies storage provisioning, improves utilization, and automates storage workflows. ViPR Controller supports heterogeneous storage environments, making it a versatile solution for modern data centers.References: Dell Information Storage and Management V5, Software-Defined Storage Solutions,Dell Certification Resource

The Cisco MDS-9132T switch model supports NVMe over Fibre Channel (FC) in a 32Gb/s SAN fabric. NVMe (Non-Volatile Memory Express) is a protocol designed for SSDs to exploit the performance potential of flash technology and provides faster data access compared to traditional SCSI protocols. The MDS-9132T is optimized for modern data centers requiring high-performance storage connectivity.

References:

• Dell EMC Information Storage and Management V5 course material, Module on Fibre Channel SAN.
• Cisco MDS 9000 Series Multilayer Switches data sheet.

Solid State Drives (SSDs) use flash memory to provide non-volatile data storage. Flash memory is a type of non-volatile memory that can be electronically erased and reprogrammed. Unlike RAM, flash memory retains data even when the power is turned off, making it ideal for permanent storage in SSDs. The primary types of flash memory used in SSDs are NAND flash, which is cost-effective and has high storage density, and NOR flash, which offers faster read speeds but is more expensive.

References: Dell Information Storage and Management V5 course material -Dell Education

Supervised Learning is a type of machine learning that explicitly requires splitting the data into training and testing datasets before running an algorithm against that data. In supervised learning, the algorithm is trained on a labeled dataset, which means that each training example is paired with an output label. The model learns from this labeled data and makes predictions or decisions based on the input data. The testing dataset, which is separate from the training dataset, is used to evaluate the model's performance and ensure it generalizes well to new, unseen data.

References: Dell Information Storage and Management V5 course material -Dell Education

The orchestration layer in a modern data center architecture is responsible for the automated arrangement, coordination, and management of resource provisioning. It uses predefined workflows to ensure that resources are provisioned and managed efficiently, allowing for automated updates and management across the data center.

References:

• Dell EMC Information Storage and Management V5 documentation.
• Dell Certification Overview

The FCIP (Fibre Channel over IP) protocol stack uses TCP (Transmission Control Protocol) to encapsulate Fibre Channel frames for transmission over IP networks. TCP provides a reliable, connection-oriented transport layer that ensures the ordered delivery of data, making it suitable for encapsulating the FC frames and transporting them across IP networks. This enables the extension of Fibre Channel networks over long distances using existing IP infrastructure.References:

• Dell EMC Information Storage and Management V5, Module on SAN and FCIP

The VLAN (Virtual Local Area Network) tagging protocol supports a maximum of 4096 VLANs. This is because the VLAN tag field in an Ethernet frame is 12 bits long, which allows for 2^12 (4096) unique VLAN IDs.

References:

• Dell EMC Information Storage and Management V5, Module: Storage Networking

VM hardening involves changing the default settings of virtual machines (VMs) to improve security. This process includes disabling unnecessary services, applying patches, and configuring security policies to protect against vulnerabilities and attacks.

References: Dell EMC ISM V5 Module 10, "Security and Virtualization," discusses the importance of VM hardening and specific practices.

Under the Platform as a Service (PaaS) model, the consumer is responsible for managing applications and data. The service provider manages the underlying infrastructure, including servers, storage, networking, and the platform (runtime, middleware, and operating system). This allows consumers to focus on developing and running applications without worrying about the underlying infrastructure.References:

• Dell EMC Information Storage and Management V5, Module on Cloud Services and Deployment Models

Edge computing is a modern technology that enables data to be securely collected and processed at the point of creation, allowing for new value to be created from the data. Edge computing uses distributed computing resources such as routers and gateways to process data close to the source, which reduces latency, improves efficiency and reduces the overall cost of data processing. Edge computing also enables data to be securely collected and processed in a decentralized manner, which improves data security and privacy. Additionally, edge computing enables the data to be processed in real-time, allowing for faster responses and more accurate results.

VMware vRealize Orchestrator is a workflow automation solution designed to automate and coordinate the service delivery and operational functions in a storage infrastructure. It provides pre-defined workflows that simplify complex IT processes and integrate with other VMware products and third-party systems, enabling streamlined operations and improved efficiency.References:= Dell ISMv5 Course Module 7: Storage Infrastructure Management.

Storage Class Memory (SCM) is a type of non-volatile memory that offers performance characteristics between DRAM and traditional NAND flash. It provides faster read and write speeds compared to flash storage, but it is slower than DRAM.

References: Dell EMC ISM V5 Module 2, "Storage Class Memory," describes the performance characteristics and use cases of SCM.

In Mobile Device Management (MDM), the application server's primary function is to perform the administration and management of all managed devices. This involves tasks such as enforcing security policies, distributing applications, monitoring device compliance, and managing device settings. The application server acts as the central point for controlling and securing mobile devices within the organization, ensuring they are configured correctly and compliant with corporate policies.

References: Dell Information Storage and Management V5 course material -Dell Education

• The metadata service in an OSD is responsible for managing metadata, which includes maintaining mappings between object IDs and the file system namespace.
• This service ensures that the location of objects and their corresponding metadata is properly indexed and retrievable.
• It does not manage physical or logical disks directly or the storage space for all remote clients.

References: Dell Information Storage and Management V5 documents

A passive attack in IT security involves unauthorized monitoring and gaining access to data without altering it. This type of attack is often used for data gathering and eavesdropping, where the attacker gains access to sensitive information without modifying or disrupting the system’s operations.

References:

• Dell EMC Information Storage and Management V5, Module: Security in Storage

Using an existing IP-based network infrastructure for storage connectivity offers the benefit of being able to extend the network over long distances. IP-based networks are designed tohandle data transmission across geographically dispersed locations, making it possible to connect storage systems in different locations seamlessly. This is particularly advantageous for disaster recovery, remote backup, and cloud storage solutions.References:= Dell ISMv5 Course Module 4: IP SAN and Storage Networking.

In a NAS environment, the Common Internet File System (CIFS) provides a public or open variation of the Server Message Block (SMB) protocol. CIFS is designed to allow file sharing over a network and is built on the TCP/IP protocol. It enables users to access files on remote systems as if they were on their local machines, supporting file sharing, printing, and various network services.

References:

• Dell Information Storage and Management V5 course materials, section on NAS protocols
• Dell EMC documentation on CIFS

In storage systems, "block-based" storage refers to the storage of data in fixed-sized blocks. Each block is identified by a unique address and can be individually accessed and modified. Block storage is typically used in SAN (Storage Area Network) environments and is well-suited for databases and virtual machine file systems where high performance and low latency are critical. The "X" in the exhibit likely indicates a storage type that offers these characteristics, pointing towards block-based storage.References: Dell Information Storage and Management V5, Types of Storage Systems,Dell Certification Resource

In a data archiving environment, the archive agent is responsible for scanning primary storage to identify files that need to be archived. The agent looks for files based on specific criteria such as age, size, and access frequency, then initiates the archiving process by moving or copying the files to the archive storage. This helps in managing storage efficiently by freeing up space on primary storage.References: Dell Information Storage and Management V5 documents, ExamTopics.

Data Center Bridging (DCB) is a set of IEEE standards that provide a lossless Ethernet network for Fibre Channel over Ethernet (FCoE). DCB enhances Ethernet networks to support the lossless delivery of storage traffic and other high-priority data by incorporating features like Priority-based Flow Control (PFC) and Enhanced Transmission Selection (ETS). These features ensure that storage traffic, such as FCoE, can be transmitted reliably over Ethernet without packet loss.References:= Dell Information Storage and Management V5 course materials

FCIP (Fibre Channel over IP) is utilized to interconnect Fibre Channel SANs over long distances. This technology encapsulates Fibre Channel frames into IP packets, allowing them to be transmitted over IP networks. It is particularly useful for interconnecting local and remote FC SANs over distances greater than 200 km, providing a cost-effective solution for SAN extension.References:

• Dell EMC Information Storage and Management V5, Module on SAN and FCIP

In Fibre Channel (FC) zoning, there are different types of zones that can be implemented:

• Port zoning: Zones are created based on the physical ports on the FC switch.
• WWN zoning: Zones are created based on the World Wide Names (WWNs) of the devices.
• Mixed zoning: Zones can be created using a combination of both port numbers and WWNs.

Referring to the provided exhibit:

• Zone1: Mixed (since it includes both port and WWN)
• Zone2: WWN (since it only uses WWN for zoning)
• Zone3: Port (since it uses ports for zoning)

References:

• Dell EMC Information Storage and Management V5 documentation.
• Dell Certification Overview

The Network layer (Layer 3) of the OSI reference model is responsible for logical addressing and routing. This layer provides the functional and procedural means of transferring variable-length data sequences from a source to a destination via one or more networks while maintaining the quality of service requested by the Transport layer. Logical addressing is implemented using IP addresses, and routing determines the best path for data to travel across the network.

References: Dell Information Storage and Management V5 course material -Dell Education

In Continuous Data Protection (CDP), the amount of space allocated for the journal determines how long the system can retain recovery points. The journal stores changes to data, and a larger journal can hold more changes over a longer period, thus allowing for recovery to a point further back in time. Therefore, the length of time the recovery points can go back is directly influenced by the journal size.References: Dell Information Storage and Management V5, Data Protection and Replication,Dell Certification Resource

The disk service time of a hard disk drive (HDD) is calculated using several factors:

• Seek Time: The time it takes for the read/write head to move to the track where the data is stored.
• Rotational Latency: The time it takes for the platter to rotate and position the correct sector under the read/write head.
• Data Transfer Rate: The speed at which data can be read from or written to the disk once the read/write head is in position.

Together, these factors determine the overall performance and speed of the HDD in accessing and retrieving data.References: Dell Information Storage and Management V5 documents.

Parity-based RAID protection uses fewer physical drives than mirroring to provide the same level of data protection. It does this by using error correction codes to detect and correct errors in the data. This allows for a much more efficient use of storage capacity, as it only requires the same amount of storage capacity as the actual data, rather than requiring twice the storage capacity as with mirroring. Additionally, parity RAID systems have the advantage of being able to recover from drive failures without having to wait for the data to be rewritten to the remaining drives, as is the case with mirroring.

A capacity planning report for storage infrastructure provides current and historical information about the utilization of storage, file systems, and ports. This information is crucial for understanding storage consumption patterns, predicting future storage needs, and ensuring that storage resources are efficiently allocated and utilized. It helps in making informed decisions about storage upgrades and expansions.

References:

• Dell Information Storage and Management V5 course materials, section on capacity planning
• Dell EMC documentation on storage capacity planning

The exhibit shows a process where data is being transferred between a control storage system and a remote storage system. This process represents data migration, which involves moving data from one storage system to another. This can be part of upgrading to new storage technology, balancing storage loads, or disaster recovery planning.

References:

• Dell EMC Information Storage and Management (ISM) Version 5.0, Chapter on Data Protection Solutions

Information availability in a modern data center environment is defined by three key parameters: Reliability, Accessibility, and Timeliness.

• Reliability refers to the system's ability to function correctly and consistently over time.
• Accessibility ensures that the data is available when needed.
• Timeliness means the data can be retrieved and used within the required time frame.

References:

• Dell Information Storage and Management V5 course materials, section on information availability
• Dell EMC documentation on data center information availability

To calculate the availability of Port 7, we need to determine the total downtime during the specified operational hours and the total operational hours for the week.

• Total operational hours:
• Total downtime during operational hours:
• Total available hours= 60 hours - 10 hours = 50 hours
• Availability= (Total available hours / Total operational hours) * 100Availability=(5060)×100=83.3%Availability=(6050​)×100=83.3%

References:

• Dell EMC Education Services

NVMe (Non-Volatile Memory Express) uses an embedded PCIe (Peripheral Component Interconnect Express) controller to connect hosts to M.2 storage devices. This direct connection allows for high-speed data transfer and low latency, making NVMe suitable for performance-intensive applications.

References:

• Dell EMC Information Storage and Management V5, Module: Storage Technologies

In a software-defined networking (SDN) architecture, the control layer is responsible for establishing communication between the infrastructure layer (data plane) and the interface layer (application plane). The control layer abstracts the underlying network infrastructure and provides a centralized management interface to define and enforce network policies, ensuring that the network can be managed and programmed more efficiently.References:= Dell ISMv5 Course Module 10: Networking in Cloud Computing.

Virtual provisioning is a storage management technique that enables more efficient allocation of storage to compute systems. It allows storage administrators to create virtual storage resources that are presented to compute systems as if they were physical resources, even if the physical storage capacity does not exist. Virtual provisioning supports various types of virtual storage, including thin LUNs and thin clones. Thin LUNs enable shared and rapid expansion with only minor disruptions. Multiple shared storage pools can be created, and each pool can be allocated to multiple thin LUNs. However, virtual provisioning does not prevent issues that arise from oversubscription; it is important to monitor and manage capacity utilization to avoid performance degradation or service disruptions. Reference: Section 2.5.1 Virtual Provisioning, page 107.

Upon receiving a service provisioning or management request, orchestrated operations trigger the appropriate workflow. Orchestration involves automating the arrangement, coordination, and management of complex computer systems, middleware, and services. It ensures that the necessary resources are provisioned and managed efficiently in response to user requests.

References:

• Dell Information Storage and Management V5 course materials, section on service provisioning and management
• Dell EMC documentation on orchestration in data centers

In Fibre Channel networks, an E_port (Expansion port) is used to connect two FC switches. The "X" in the exhibit indicates a connection between two FC switches, representing an E_port, which allows the creation of larger fabrics by linking multiple switches.

References: Dell EMC ISM V5 Module 4, "Fibre Channel SAN," details the different types of FC ports and their functions.

Log files in a VM environment record the activities and events that occur within the VM. These logs include information about system operations, user actions, errors, and other significant events. Log files are crucial for troubleshooting because they provide detailed records that help administrators diagnose and resolve issues. They can indicate what processes were running, what errors occurred, and provide a timeline of events leading up to a problem, making them an essential tool for maintaining VM health and performance.

References:

• Dell EMC Information Storage and Management V5 Course, Module 8: Managing the Storage Infrastructure.
• Dell EMC ISM V5 Student Guide, Page 210-211.

https://www.mycloudwiki.com/san/fc-san-protocols/

an FC frame consists of five parts: start of frame (SOF), frame header, data field, cyclic redundancy check (CRC), and end of frame (EOF). The SOF and EOF act as delimiters. The frame header is 24 bytes long and contains addressing information for the frame.

A hypervisor is a layer of software that runs directly on top of a physical server and provides a virtualization layer. It allows multiple virtual machines (VMs) to run on the same physical hardware, sharing the underlying resources such as CPU, memory, and storage. The hypervisor isolates the VMs from each other and provides a virtual machine monitor (VMM) that manages the virtual machines' access to physical resources. The VMM is responsible for managing the VMs' creation, configuration, and removal, as well as their access to the physical resources of the host system. T

In Fibre Channel (FC) networking, the port types are crucial for understanding the connections between devices. The "X" in the exhibit represents an F_port. An F_port, or Fabric port, is a port on a switch that connects to an N_port, or Node port, which is typically on a host or storage device. This setup facilitates communication within the storage area network (SAN).

References:

• Dell EMC Information Storage and Management (ISM) Version 5.0, Chapter on Storage Networking Technologies

To calculate MTTR, we need to convert the hours into minutes. Here are the steps:

• Monday: Port 7 was down from 4 PM to 11 PM. That’s 7 hours or 420 minutes.
• Wednesday: Port 7 was down from 2 PM to 10 PM. That’s 8 hours or 480 minutes.
• Friday: Port 7 was down from 5 AM to11 AM. That’s 6 hours or 360 minutes.
• Total corrective maintenance time = 420 + 480 + 360 = 1260 minutes
• Number of repairs = 3
• MTTR = Total corrective maintenance time / Number of repairs
• MTTR = 1260 / 3 = 420 minutes

Therefore, the MTTR of Port 7 is 420 minutes.

Signature-based IDPS uses a database that contains known attack patterns or signatures. Each signature is associated with a particular type of attack and the IDPS will look for those patterns in order to identify malicious activity. For example, if the signature in the database is associated with a buffer overflow attack, the IDPS will look for that particular pattern of attack in order to detect the attack.

Cache tiering automatically allocates a large capacity secondary cache using Solid State Drives (SSDs) and Storage Class Memory (SCM). This method optimizes storage performance by dynamically assigning frequently accessed data to faster storage tiers, such as SSDs and SCM, while less frequently accessed data remains on slower storage tiers.

References:

• Dell EMC Information Storage and Management V5, Module: Storage Systems

A Demilitarized Zone (DMZ) is a physical or logical subnetwork that contains and exposes an organization's external-facing services to an untrusted network, usually the internet. The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN). The external-facing resources in the DMZ can be accessed from the internet, but the DMZ provides a barrier that prevents external access to the organization's internal network. This setup ensures secure access to internal assets while enabling internet-based access to selected resources.References: Dell Information Storage and Management V5, Security Mechanisms and Controls,Dell Certification Resource