Paloalto Networks PCCET Palo Alto Networks Certified Cybersecurity Entry-level Technician Exam Practice Test

A botnet is a network of computers or devices that are infected by malware and controlled by a malicious actor, known as the botmaster or bot-herder. The botmaster uses a command and control (C2) server or channel to send instructions to the bots and receive information from them. The C2 communication is essential for the botmaster to maintain control over the botnet and use it for various malicious purposes, such as launching distributed denial-of-service (DDoS) attacks, stealing data, sending spam, or mining cryptocurrency. Therefore, the key to “taking down” a botnet is to prevent the bots from communicating with the C2 server or channel. This can be done by disrupting, blocking, or hijacking the C2 communication, which can render the botnet ineffective, unstable, or inaccessible. For example, security researchers or law enforcement agencies can use techniques such as sinkholing, domain name system (DNS) poisoning, or domain seizure to redirect the bot traffic to a benign server or a dead end, cutting off the connection between the bots and the botmaster. Alternatively, they can use techniques such as reverse engineering, decryption, or impersonation to infiltrate the C2 server or channel and take over the botnet, either to disable it, monitor it, or use it for good purposes. References:

• What is a Botnet? - Palo Alto Networks
• Botnet Detection and Prevention Techniques | A Quick Guide - XenonStack
• Botnet Mitigation: How to Prevent Botnet Attacks in 2024 - DataDome
• What is a Botnet? Definition and Prevention | Varonis

Phishing is a type of email attack where the attacker sends a lot of malicious emails in an untargeted way, pretending to be a trusted source, such as a bank or an online retailer, to trick users into revealing sensitive information, such as passwords or credit card numbers. Attackers use the information to steal money or to launch other attacks. A fake email from a bank asking you to click a link and verify your account details is an example of phishing1 References:

• 1: Palo Alto Networks Certified Cybersecurity Entry-level Technician - Palo Alto Networks
• 2: 10 Palo Alto Networks PCCET Exam Practice Questions - CBT Nuggets
• 3: Types of Email Attacks - Examples and Consequences - Tessian
• 4: What Is a Phishing Attack? Definition and Types - Cisco

CaaS, or Containers-as-a-Service, is a cloud service that allows users to manage and deploy applications using containers and clusters. CaaS can be situated between IaaS and PaaS in the spread of cloud computing services, based on how much is managed by the vendor. IaaS, or Infrastructure-as-a-Service, provides the lowest level of abstraction, where users have to manage the servers, storage, network, and operating system. PaaS, or Platform-as-a-Service, provides a higher level of abstraction, where users only have to manage the application code and data. FaaS, or Function-as-a-Service, provides the highest level of abstraction, where users only have to manage the functions or logic of the application. CaaS falls in between IaaS and PaaS, as it provides users with more control over the container orchestration and configuration than PaaS, but also simplifies the infrastructure management and scaling than IaaS123. References:

• What is CaaS? from Red Hat
• Containers as a Service from Atlassian
• Container as a Service (CaaS) from GeeksforGeeks

In addition to local analysis, Cortex XDR can send unknown files to WildFire for discovery and deeper analysis to rapidly detect.

Short-range wireless:

● Adaptive Network Technology+ (ANT+): ANT+ is a proprietary multicast wireless sensor

network technology primarily used in personal wearables, such as sports and fitness sensors.

● Bluetooth/Bluetooth Low-Energy (BLE): Bluetooth is a low-power, short-range

communications technology primarily designed for point-to-point communications between wireless devices in a hub-and-spoke topology. BLE (also known as Bluetooth Smart or Bluetooth 4.0+) devices consume significantly less power than Bluetooth devices and can access the internet directly through 6LoWPAN connectivity.

● Internet Protocol version 6 (IPv6) over Low-Power Wireless Personal Area Networks

(6LoWPAN): 6LoWPAN allows IPv6 traffic to be carried over low-power wireless mesh

networks. 6LoWPAN is designed for nodes and applications that require wireless internet

connectivity at relatively low data rates in small form factors, such as smart light bulbs

and smart meters.

● Wi-Fi/802.11: The Institute of Electrical and Electronics Engineers (IEEE) defines the 802

LAN protocol standards. 802.11 is the set of standards used for Wi-Fi networks typically

operating in the 2.4GHz and 5GHz frequency bands. The most common implementations

today include:

‒ 802.11n (labeled Wi-Fi 4 by the Wi-Fi Alliance), which operates on both 2.4GHz and 5GHz

bands at ranges from 54Mbps to 600Mbps

‒ 802.11ac (Wi-Fi 5), which operates on the 5GHz band at ranges from 433Mbps to 3.46

Gbps

‒ 802.11ax (Wi-Fi 6), which operates on the 2.4GHz and 5GHz bands (and all bands between 1 and 6GHz, when they become available for 802.11 use) at ranges up to 11Gbps

● Z-Wave: Z-Wave is a low-energy wireless mesh network protocol primarily used for home

automation applications such as smart appliances, lighting control, security systems,

smart thermostats, windows and locks, and garage doors.

● Zigbee/802.14: Zigbee is a low-cost, low-power wireless mesh network protocol based on the IEEE 802.15.4 standard. Zigbee is the dominant protocol in the low-power networking market, with a large installed base in industrial environments and smart home products.

As containers grew in popularity and used diversified orchestrators such as Kubernetes (and its derivatives, such as OpenShift), Mesos, and Docker Swarm, it became increasingly important to deploy and operate containers at scale.

https://www.dynatrace.com/news/blog/kubernetes-vs-docker/

East-West traffic is the lateral movement of data packets between servers within a data center, or across private and public clouds1. This type of traffic has grown substantially with the proliferation of data centers and cloud adoption, and it now surpasses the conventional North-South traffic that goes in or out of the network2. Therefore, it is important to protect East-West traffic from potential malicious actors and breaches, as threats can arise internally and move laterally without ever touching the traditional network perimeter12. By inspecting and monitoring all East-West traffic, organizations can effectively block the lateral movement of threat actors, increase network visibility, protect vital applications and data, and lower costs and risks for distributed operations23. References:

• East-West Traffic: Everything You Need to Know | Gigamon Blog
• What is East-West Security? | VMware Glossary
• How to Harness East-West Visibility for a Stronger Defensive Security …

Examples of serverless environments include Amazon Lambda and Azure Functions. Many PaaS offerings, such as Pivotal Cloud Foundry, also are effectively serverless even if they have not historically been marketed as such. Although serverless may appear to lack the container-specific, cloud native attribute, containers are extensively used in the underlying implementations, even if those implementations are not exposed to end users directly.

App-ID™ technology leverages the power of the broad global community to provide continuous identification, categorization, and granular risk-based control of known and previously unknown SaaS applications, ensuring new applications are discovered automatically as they become popular.

Endpoint antivirus software is a type of software designed to help detect, prevent, and eliminate malware on devices, such as laptops, desktops, smartphones, and tablets. Endpoint antivirus software can block viruses that are not seen and blocked by the perimeter firewall, which is a network security device that monitors and controls incoming and outgoing network traffic based on predefined security rules. Perimeter firewall can block some known viruses, but it may not be able to detect and stop new or unknown viruses that use advanced techniques to evade detection. Endpoint antivirus software can provide an additional layer of protection by scanning the files and processes on the devices and using various methods, such as signatures, heuristics, behavior analysis, and cloud-based analysis, to identify and remove malicious code123. References:

• What Is Endpoint Antivirus? Key Features & Solutions Explained - Trellix
• Microsoft Defender for Endpoint | Microsoft Security
• Download ESET Endpoint Antivirus | ESET

HTTPS is a protocol that encrypts and secures the communication between web browsers and servers. HTTPS uses SSL or TLS certificates to establish a secure connection and prevent unauthorized access or tampering of data. HTTPS typically uses port 443, which is the default port for HTTPS connections. Port 443 is different from port 80, which is the default port for HTTP connections. HTTP is an unencrypted and insecure protocol that can expose sensitive information or allow malicious attacks. Port 443 is also different from port 5050, which is a common port for some applications or services, such as Yahoo Messenger or SIP. Port 5050 is not associated with HTTPS and does not provide any encryption or security. Port 443 is also different from port 25, which is the default port for SMTP, the protocol used for sending and receiving emails. Port 25 is not associated with HTTPS and does not encrypt the email content or headers. References:

•Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET) - Palo Alto Networks

•HTTPS Protocol: What is the Default Port for SSL & Common TCP Ports

•What is HTTPS? | Cloudflare

•Can I use another port other than 443 for HTTPS/SSL communication?

Cortex XSOAR Threat Intelligence Management (TIM) is a platform that enables security teams to manage the lifecycle of threat intelligence, from aggregation to action. One of the key features of Cortex XSOAR TIM is that it automates the ingestion and aggregation of indicators from various sources, such as threat feeds, open-source intelligence, internal data, and third-party integrations 1. Indicators are pieces of information that can be used to identify malicious activity, such as IP addresses, domains, URLs, hashes, etc. By automating the ingestion and aggregation of indicators, Cortex XSOAR TIM reduces the manual effort and time required to collect, validate, and prioritize threat data. It also enables analysts to have a unified view of the global threat landscape and the impact of threats on their network 1. References: 1: Threat Intelligence Management - Palo Alto Networks 2

● Type 1 (native or bare metal). Runs directly on the host computer’s hardware

● Type 2 (hosted). Runs within an operating system environment

An advanced persistent threat (APT) is a sophisticated, sustained cyberattack in which an intruder establishes an undetected presence in a network in order to steal sensitive data over a prolonged period of time. APTs are usually carried out by well-funded, experienced teams of cybercriminals that target high-value organizations, such as governments, military, or corporations. APTs have the skills and resources to launch additional attacks, as they often use advanced techniques to evade detection, move laterally within the network, and establish multiple entry points and backdoors. APTs are not interested in causing immediate damage or disruption, but rather in achieving long-term goals, such as espionage, sabotage, or theft of intellectual property. Therefore, option B is the correct answer among the given choices123 References:

• 1: Palo Alto Networks Certified Cybersecurity Entry-level Technician - Palo Alto Networks
• 2: 10 Palo Alto Networks PCCET Exam Practice Questions - CBT Nuggets
• 3: What Is an Advanced Persistent Threat (APT)? - Cisco
• 4: What is an Advanced Persistent Threat (APT)? - CrowdStrike
• 5: What Is an Advanced Persistent Threat (APT)? - Kaspersky

 In the given network diagram, device D is depicted as a cloud symbol, which is commonly used to represent the internet in network diagrams. The router is typically connected to the internet and acts as a gateway for internal network devices to access external networks. Therefore, device D is the router in this context. References: Virtual Router Overview - Palo Alto Networks | TechDocs, Networking (UDRs) in Azure: Inserting the VM-Series into an Azure …, Setting Up the PA-200 for Home and Small Office - Palo Alto Networks …

A directory service is a database that contains information about users, resources, and services in a network.

A static routing protocol requires that routes be created and updated manually on a router or other network device. If a static route is down, traffic can’t be automatically rerouted unless an alternate route has been configured. Also, if the route is congested, traffic can’t be automatically rerouted over the less congested alternate route. Static routing is practical only in very small networks or for very limited, special-case routing scenarios (for example, a destination that’s used as a backup route or is reachable only via a single router). However, static routing has low bandwidth requirements (routing information isn’t broadcast across the network) and some built-in security (users can route only to destinations that are specified in statically defined routes).

Cortex XSOAR enhances Security Operations Center (SOC) efficiency with the world’s most comprehensive operating platform for enterprise security. Cortex XSOAR unifies case management, automation, real-time collaboration, and native threat intel management in the industry’s first extended security orchestration, automation, and response (SOAR) offering.

"In serverless apps, the developer uploads only the app package itself, without a full container image or any OS components. The platform dynamically packages it into an image, runs the image in a container, and (if needed) instantiates the underlying host OS and VM and the hardware required to run them."

● Benign: Safe and does not exhibit malicious behavior

● Grayware: No security risk but might display obtrusive behavior (for example, adware,

spyware, and browser helper objects)

● Malware: Malicious in nature and intent and can pose a security threat (for example,

viruses, worms, trojans, root kits, botnets, and remote-access toolkits)

● Phishing: Malicious attempt to trick the recipient into revealing sensitive data

The basic DNS record types are as follows:

● A (IPv4) or AAAA (IPv6) (Address): Maps a domain or subdomain to an IP address or

multiple IP addresses

● CNAME (Canonical Name): Maps a domain or subdomain to another hostname

● MX (Mail Exchanger): Specifies the hostname or hostnames of email servers for a domain

● PTR (Pointer): Points to a CNAME; commonly used for reverse DNS lookups that map an

IP address to a host in a domain or subdomain

● SOA (Start of Authority): Specifies authoritative information about a DNS zone such as

primary name server, email address of the domain administrator, and domain serial

number

● NS (Name Server): The NS record specifies aan authoritative name server for a given host.

● TXT (Text): Stores text-based information

To deliver secure east-west flows and secure Kubernetes workloads in a public cloud environment, you have two deployment options available: VM-Series and CN-Series.

• VM-Series is a virtualized form factor of the Palo Alto Networks next-generation firewall that can be deployed in public cloud platforms such as AWS, Azure, Google Cloud, and Oracle Cloud. VM-Series provides comprehensive network security and threat prevention capabilities for protecting your cloud workloads and applications from cyberattacks. VM-Series can also integrate with native cloud services and third-party tools to enable automation, orchestration, and visibility across your cloud environment. VM-Series supports various deployment scenarios, such as securing internet-facing applications, protecting hybrid connectivity, segmenting internal networks, and enabling secure DevOps12.
• CN-Series is a containerized form factor of the Palo Alto Networks next-generation firewall that can be deployed in Kubernetes environments. CN-Series provides granular network security and threat prevention capabilities for protecting your Kubernetes pods and namespaces from cyberattacks. CN-Series can also integrate with Kubernetes network plugins and services to enable dynamic policy enforcement, service discovery, and visibility across your Kubernetes clusters. CN-Series supports various deployment scenarios, such as securing ingress and egress traffic, enforcing microsegmentation, and enabling secure DevSecOps34.

References:

• VM-Series in Public Cloud
• VM-Series Deployment Guide
• CN-Series in Kubernetes
• CN-Series Deployment Guide

 Connectors and interfaces are the components that enable a SIEM to collect, process, and analyze data from various sources, such as Microsoft 365 services and applications1, cloud platforms, network devices, and security solutions. Connectors are responsible for extracting and transforming data from the source systems, while interfaces are responsible for sending and receiving data to and from the SIEM server. Without connectors and interfaces, a SIEM cannot operate correctly and ensure a translated flow from the system of interest to the SIEM data lake. References:

• SIEM server integration with Microsoft 365 services and applications
• What Is SIEM Integration? 2024 Comprehensive Guide - SelectHub
• SIEM Connector - docs.metallic.io
• SIEM Connector

The six pillars include:

1. Business (goals and outcomes)

2. People (who will perform the work)

3. Interfaces (external functions to help achieve goals)

4. Visibility (information needed to accomplish goals)

5. Technology (capabilities needed to provide visibility and enable people)

6. Processes (tactical steps required to execute on goals)

The six pillars include:

1. Business (goals and outcomes)

2. People (who will perform the work)

3. Interfaces (external functions to help achieve goals)

4. Visibility (information needed to accomplish goals)

5. Technology (capabilities needed to provide visibility and enable people)

6. Processes (tactical steps required to execute on goals)

All elements must tie back to the business itself and the goals of the security operations

 A sanctioned application is an application that is approved by the IT department and meets the security and compliance requirements of the organization. Sanctioned applications are allowed to access the organization’s network and data and are monitored and protected by the IT department. Examples of sanctioned applications are Office 365, Salesforce, and Zoom. Sanctioned applications are different from unsanctioned, prohibited, and tolerated applications, which are not approved by the IT department and may pose security risks to the organization. Unsanctioned applications are applications that are used by the employees without the IT department’s knowledge or consent, such as Dropbox, Gmail, or Facebook. Prohibited applications are applications that are explicitly forbidden by the IT department, such as BitTorrent, Tor, or malware. Tolerated applications are applications that are not approved by the IT department, but are not blocked or restricted, such as Skype, Spotify, or YouTube. References: Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET), Cloud Security Fundamentals - Module 4: Cloud Security Best Practices, Application Visibility and Control

TCP stands for Transmission Control Protocol, and it is one of the main protocols used in the internet. TCP provides reliable, ordered, and error-free delivery of data between applications 1. In terms of the OSI model, TCP is a transport-layer protocol. The transport layer is the fourth layer of the OSI model, and it is responsible for establishing end-to-end connections, segmenting data into packets, and ensuring reliable and efficient data transfer 2. The transport layer also provides flow control, congestion control, and error detection and correction mechanisms 2. TCP is not the only transport-layer protocol; another common one is UDP (User Datagram Protocol), which is faster but less reliable than TCP 3. References: 1: TCP/IP TCP, UDP, and IP protocols - IBM 2: Transport Layer | Layer 4 | The OSI-Model 3: TCP/IP Model vs. OSI Model | Similarities and Differences - Fortinet

OSPF is a link-state routing protocol that requires all routers in the same domain to maintain a map of the network. This map is called the link-state database (LSDB) and it contains information about the topology and the state of each link. Each router independently calculates the shortest path to every destination in the network using the Dijkstra algorithm. OSPF routers exchange routing information by flooding link-state advertisements (LSAs) to their neighbors. LSAs are acknowledged by the receivers to ensure reliable delivery12. References:

• What Is OSPF? Understanding Network Protocols By WireX Systems
• Routing Protocols Overview - Global Knowledge

Forensics in a Security Operations process refers to collecting raw data needed to complete the detailed analysis of an investigation. Forensic analysis is a crucial step in identifying, investigating, and documenting the cause, course, and consequences of a security incident or violation. Forensic analysis involves various techniques and tools to extract, preserve, analyze, and present evidence in a structured and acceptable format. Forensic analysis can be used for legal compliance, auditing, incident response, and threat intelligence purposes. References:

• Cyber Forensics Explained: Reasons, Phases & Challenges of Cyber Forensics
• SOC Processes, Operations, Challenges, and Best Practices
• What is Digital Forensics | Phases of Digital Forensics | EC-Council

Routing protocols are defined at the network layer (Layer 3) of the OSI model. The network layer is responsible for routing packets across different networks using logical addresses (IP addresses). Routing protocols are used to exchange routing information between routers and to determine the best path for data delivery. Some examples of routing protocols are BGP, OSPF, RIP, and EIGRP. Palo Alto Networks devices support advanced routing features using the Advanced Routing Engine1. References: Advanced Routing - Palo Alto Networks | TechDocs, What Is Layer 7? - Palo Alto Networks, How to Configure Routing Information Protocol (RIP)

"The WildFire cloud-based malware analysis environment is a cyber threat prevention service that identifies unknown malware, zero-day exploits, and advanced persistent threats (APTs) through static and dynamic analysis in a scalable, virtual environment. WildFire automatically disseminates updated protections in near-real time to immediately prevent threats from spreading; this occurs without manual intervention"

Cortex XDR breaks the silos of traditional detection and response by natively integrating network, endpoint, and cloud data to stop sophisticated attacks

Prisma Access provides firewall as a service (FWaaS) that protects branch offices from threats while also providing the security services expected from a next-generation firewall. The full spectrum of FWaaS includes threat prevention, URL filtering, sandboxing, and more.

Identity and access management (IAM) is a software service or framework that allows organizations to define user or group identities within software environments, then associate permissions with them. The identities and permissions are usually spelled out in a text file, which is referred to as an IAM policy.

When you enable URL Filtering, all web traffic is compared against the URL Filtering database, PAN-DB, which contains millions of URLs that have been grouped into about 65 categories.

A SASE solution converges networking and security services into one unified, cloud-delivered solution (see Figure 3-12) that includes the following:

● Networking

○ Software-defined wide-area networks (SD-WANs)

○ Virtual private networks (VPNs)

○ Zero Trust network access (ZTNA)

○ Quality of Service (QoS)

● Security

○ Firewall as a service (FWaaS)

○ Domain Name System (DNS) security

○ Threat prevention

○ Secure web gateway (SWG)

○ Data loss prevention (DLP)

○ Cloud access security broker (CASB)

SecOps is the organizational function that is responsible for security automation and eventual vetting of the solution to help ensure consistency through machine-driven responses to security issues. SecOps is a collaboration between security and operations teams that aims to align their goals, processes, and tools to improve security posture and efficiency. SecOps can leverage automation to simplify and accelerate security tasks, such as threat detection, incident response, vulnerability management, compliance enforcement, and more. Security automation can also reduce human errors, enhance scalability, and free up resources for more strategic initiatives. References:

• SecOps from Palo Alto Networks
• What is security automation? from Red Hat
• What is Security Automation? from Check Point Software

Wireshark is a network analysis tool that can capture packets from various network interfaces and protocols. It can display the captured packets in a human-readable format, as well as filter, analyze, and export them. Wireshark is widely used for network troubleshooting, security testing, and education purposes12. References: Wireshark · Go Deep, How to Use Wireshark to Capture, Filter and Inspect Packets, Palo Alto Networks Certified Cybersecurity Entry-level Technician

Cloud-native security is the integration of security strategies into applications and systems designed to be deployed and to run in cloud environments. It involves a layered approach that considers security at every level of the cloud-native application architecture. The four C’s of cloud-native security are123:

• Code: This layer refers to the application code and its dependencies. Security at this layer involves ensuring the code is free of vulnerabilities, using secure coding practices, and implementing encryption, authentication, and authorization mechanisms.

• Container: This layer refers to the lightweight, isolated units that encapsulate the application and its dependencies. Security at this layer involves scanning and verifying the container images, enforcing policies and rules for container deployment and runtime, and isolating and protecting the containers from unauthorized access.

• Cluster: This layer refers to the group of nodes that host the containers and provide orchestration and management capabilities. Security at this layer involves securing the communication between the nodes and the containers, monitoring and auditing the cluster activity, and applying security patches and updates to the cluster components.

• Cloud: This layer refers to the underlying infrastructure and services that support the cloud-native applications. Security at this layer involves configuring and hardening the cloud resources, implementing identity and access management, and complying with the cloud provider’s security standards and best practices.

The correct order of the four C’s from the top (surface) layer to the bottom (base) layer is code, container, cluster, cloud, as each layer depends on the security of the next outermost layer. References: What Is Cloud-Native Security? - Palo Alto Networks, What is Cloud-Native Security? An Introduction | Splunk, The 4C’s of Cloud Native Kubernetes security - Medium

The Anthem data breach of 2015 was caused by a phishing scheme that captured a database administrator’s password. According to the U.S. Department of Health and Human Services (HHS) Office for Civil Rights (OCR), hackers sent phishing emails to an Anthem subsidiary. At least one employee responded. Attackers were able to plant malware on the company’s system and gain remote access to confidential information1. The breach exposed the electronic protected health information of almost 79 million people, including names, Social Security numbers, medical identification numbers, addresses, dates of birth, email addresses, and employment information2. References:

• Anthem Pays OCR $16 Million in Record HIPAA Settlement Following Largest U.S. Health Data Breach
• How Anthem Data Breach Exposed Personnel Records - IDStrong

Attack communication traffic is usually hidden with various techniques and

tools, including:

● Encryption with SSL, SSH (Secure Shell), or some other custom or proprietary encryption

● Circumvention via proxies, remote access tools, or tunneling. In some instances, use of

cellular networks enables complete circumvention of the target network for attack C2 traffic.

● Port evasion using network anonymizers or port hopping to traverse over any available open

ports

● Fast Flux (or Dynamic DNS) to proxy through multiple infected endpoints or multiple,

ever-changing C2 servers to reroute traffic and make determination of the true destination

or attack source difficult

● DNS tunneling is used for C2 communications and data infiltration

Port hopping is a technique that changes protocols at random during a session to evade detection and analysis by security devices. Port hopping can be used by malware or attackers to communicate with command and control servers or to exfiltrate data. Port hopping makes it difficult to identify and block malicious traffic based on port numbers or signatures. References: Port Hopping, Ports Used for Management Functions, Adding a Custom Application/Ports to Security Policy

The URL Filtering service complements App-ID by enabling you to configure the next-generation firewall to identify and control access to websites and to protect your organization from websites that host malware and phishing pages.

DevSecOps takes the concept behind DevOps that developers and IT teams should work together closely, instead of separately, throughout software delivery and extends it to include security and integrate automated checks into the full CI/CD pipeline. The integration of the CI/CD pipeline takes care of the problem of security seeming like an outside force and instead allows developers to maintain their usual speed without compromising data security

To find the subnet that the host 192.168.19.36/27 belongs to, we need to convert the IP address and the subnet mask to binary form and perform a logical AND operation. The /27 notation means that the subnet mask has 27 bits of ones and 5 bits of zeros. In decimal form, the subnet mask is 255.255.255.224. The binary form of the IP address and the subnet mask are:

IP address: 11000000.10101000.00010011.00100100 Subnet mask: 11111111.11111111.11111111.11100000

The logical AND operation gives us the network prefix:

Network prefix: 11000000.10101000.00010011.00100000

To get the subnet address, we convert the network prefix back to decimal form:

Subnet address: 192.168.19.32

The subnet address is the first address in the subnet range. To find the last address in the subnet range, we flip the bits of the subnet mask and perform a logical OR operation with the network prefix:

Flipped subnet mask: 00000000.00000000.00000000.00011111 Logical OR: 11000000.10101000.00010011.00111111

The last address in the subnet range is:

Last address: 192.168.19.63

The subnet range is from 192.168.19.32 to 192.168.19.63. The host 192.168.19.36 belongs to this subnet. Therefore, the correct answer is B. 192.168.19.16, which is the second address in the subnet range.

References:

• IP Subnet Calculator
• Subnet Calculator - IP and CIDR
• Which subnet does the host 192.168.19.36/27 belong? - VCEguide.com

 In SecOps, the identify stage is the first step in the security operations lifecycle. It involves gaining knowledge and understanding of the possible security threats and establishing methods to detect, respond and proactively prevent them from occurring1. Two of the components included in the identify stage are:

• Initial Research: This component involves gathering information about the organization’s assets, vulnerabilities, risks, and compliance requirements. It also involves identifying the key stakeholders, objectives, and metrics for the SecOps project2.
• Content Engineering: This component involves developing and maintaining the security content, such as rules, policies, signatures, and alerts, that will be used by the SecOps tools and processes. It also involves testing and validating the security content for accuracy and effectiveness3.

References: What is SecOps? (and what are the benefits and best practices?), SecOps - definition & overview, The Six Pillars of Effective Security Operations

In anti-malware, a false positive incorrectly identifies a legitimate file or application as malware. A false negative incorrectly identifies malware as a legitimate file or application. In intrusion detection, a false positive incorrectly identifies legitimate traffic as a threat, and a false negative incorrectly identifies a threat as legitimate traffic.