Cisco 200-201 Practice Test - Questions Answers, Page 16

The average time taken by a Security Operations Center (SOC) to detect and resolve incidents is a critical metric for evaluating its effectiveness and scope. This metric reflects the SOC's efficiency in identifying security threats and its ability to respond and mitigate those threats promptly.It encompasses the entire incident lifecycle, from initial detection to final resolution, providing a comprehensive measure of the SOC's performance1.

Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS)

The operation described is characteristic of thefork()system call in Linux, which is used to create a new process. Thefork()system call generates a new process by duplicating the calling (parent) process. If thefork()is successful, the PID of the child process is returned to the parent process, and a 0 value is returned to the child process.If unsuccessful, a negative value is returned2.

How to create a process in Linux? - Online Tutorials Library

After a breach has been discovered and the immediate threat has been addressed by identifying and removing the threat's access, the next step according to the NIST SP 800-61 Incident Handling Guide is to recover from the threat.This involves restoring systems to normal operation, confirming that the systems are functioning normally, and applying patches or other remediation measures to prevent similar breaches in the future1.

Understanding NIST SP 800-61: The Computer Security Incident Handling Guide

The PCAP file shows a network packet capture of an HTTP GET request from a client to a server. The User-Agent header field identifies the type and version of the client software that generated the request. In this case, the User-Agent is Mozilla/5.0, which indicates that the client is using a Mozilla-based browser or application. The User-Agent can help the server to customize the response based on the client's capabilities and preferences.Reference: Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 3: Network Protocols and Services, Lesson 3.2: HTTP and HTTPS, Topic 3.2.1: HTTP Headers.

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Tampered images are disk images that have been modified or altered in some way after they were captured from the original source. Tampered images may have different stored and computed hash values, which indicate that the integrity of the image has been compromised. Tampered images are not reliable or valid sources of evidence for forensic investigations, as they may contain false or misleading information. Untampered images are disk images that have not been changed or manipulated after they were acquired from the original source. Untampered images have the same stored and computed hash values, which verify that the image is an exact copy of the original disk. Untampered images are used for forensic investigations, as they preserve the original state and content of the disk and provide accurate and trustworthy evidence.Reference:

Contrasting tampered and untampered disk images

What is a difference between tampered and untampered disk images?

According to the NIST Computer Security Incident Handling Guide, the next step in handling an event after confirming a potential indicator of compromise on an endpoint is to collect public information on the malware behavior. This step involves searching for information from various sources, such as antivirus vendors, security blogs, threat intelligence feeds, and online forums, to learn more about the characteristics, capabilities, and impact of the malware. This information can help the SOC team to identify the type, severity, and scope of the incident, as well as to determine the appropriate response actions and mitigation strategies. Isolating the infected endpoint, performing forensics analysis, and prioritizing incident handling are subsequent steps that follow after collecting public information on the malware behavior.Reference:

Computer Security Incident Handling Guide

SP 800-61 Rev. 2, Computer Security Incident Handling Guide

A sandbox is a technology on a host that is used to isolate a running application from other applications. A sandbox creates a controlled and restricted environment for the application to execute, limiting its access to system resources and data. A sandbox can prevent the application from spreading malware, stealing information, or causing damage to the host or the network. A sandbox can also be used to test and analyze the behavior of unknown or suspicious applications without risking the security of the host. Application allow list, application block list, and host-based firewall are other technologies on a host that can be used to control or restrict the execution of applications, but they do not isolate them from other applications.Reference:

How can I best isolate a particular program (game)

App isolation in Windows 10

Types of Endpoint Application Isolation and Containment Technology

According to the NIST Incident Handling Guide, the analysis phase is the next phase of this investigation. The analysis phase involves examining the evidence and determining the impact, scope, and cause of the incident. The analyst should also identify the attacker's methods, tools, and objectives, as well as any indicators of compromise or malicious activity. The analysis phase may also involve collecting additional data, such as logs, network traffic, or malware samples, to support the investigation. The analysis phase is crucial for developing an effective response and recovery strategy, as well as preventing or mitigating future incidents.Reference:

NIST Special Publication 800-61 Revision 2, Computer Security Incident Handling Guide, Section 3.2.4, Analysis (https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-61r2.pdf)

Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 5: Security Incident Response, Lesson 5.2: Incident Response Process, Topic 5.2.3: Analysis Phase (https://learningnetworkstore.cisco.com/on-demand-e-learning/understanding-cisco-cybersecurity-operations-fundamentals-cbrops-v1-0/CSCU-LP-CBROPS-V1-028093.html)

Session data is the data type that is necessary to get information about source/destination ports. Session data is the information about connections between hosts, such as IP addresses, ports, protocols, and duration. Session data can be used to identify the services and applications that are being used on the network, as well as the direction and volume of the traffic. Session data can also help to detect anomalous or malicious behavior, such as port scanning, brute force attacks, or data exfiltration. Session data can be collected from various sources, such as firewalls, routers, switches, or network monitoring tools.Reference:

Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 2: Security Monitoring, Lesson 2.2: Data Sources, Topic 2.2.2: Session Data (https://learningnetworkstore.cisco.com/on-demand-e-learning/understanding-cisco-cybersecurity-operations-fundamentals-cbrops-v1-0/CSCU-LP-CBROPS-V1-028093.html)

Cisco Certified CyberOps Associate Certification Guide, Chapter 3: Data Sources, Section 3.2: Session Data (https://www.ciscopress.com/store/cisco-certified-cyberops-associate-certification-guide-9780136807834)

https://www.ibm.com/docs/en/networkmanager/4.2.0?topic=relationships-connectivity-data