CompTIA CS0-003 Online Practice Questions and Exam Preparation

CompTIA CS0-003 Online Questions & Answers

• Question 271:

  A security analyst receives an alert with the following packet capture attached:

  

  Which of the following has occurred?

  A. sslscan reconnaissance
  B. A password stuffing attack
  C. An Nmap scan
  D. An nc reverse shell
  C. An Nmap scan

• Question 272:

  A security analyst is logged on to a jump server to audit the system configuration and status. The organization's policies for access to and configuration of the jump server include the following:

  1. No network access is allowed to the internet.

  2. SSH is only for management of the server.

  3. Users must utilize their own accounts, with no direct login as an administrator.

  4. Unnecessary services must be disabled.

  The analyst runs netstar with elevated permissions and receives the following output:

  

  Which of the following policies does the server violate?

  A. Unnecessary services must be disabled.
  B. SSH is only for management of the server.
  C. No network access is allowed to the internet.
  D. Users must utilize their own accounts, with no direct login as an administrator.
  C. No network access is allowed to the internet.

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  Explanation

  The server violates the policy of no network access to the internet because it has an established connection to an external IP address (216.58.194.174) on port 443, which is used for HTTPS traffic. This indicates that the server is communicating with a web server on the internet, which is not allowed by the policy. The other policies are not violated because SSH is only used for management of the server (not for accessing other devices), users are utilizing their own accounts (not logging in as an administrator), and unnecessary services are not enabled (only SSH and HTTPS are running). CompTIA Cybersecurity Analyst (CySA+) Certification Exam Objectives (CS0-002), page 9;

  https://en.wikipedia.org/wiki/Jump_server

• Question 273:

  Which of the following is the best way to begin preparation for a report titled "

  What We Learned" regarding a recent incident involving a cybersecurity breach?

  A. Determine the sophistication of the audience that the report is meant for
  B. Include references and sources of information on the first page
  C. Include a table of contents outlining the entire report
  D. Decide on the color scheme that will effectively communicate the metrics
  A. Determine the sophistication of the audience that the report is meant for

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  Explanation

  The best way to begin preparati"" regarding a recent incident involving a cybersecurity breach is to determine the sophistication of the audience that the report is meant for. The sophistication of the audience refers to their level of technical knowledge, understanding, or interest in cybersecurity topics. Determining the sophistication of the audience can help tailor the report content, language, tone, and format to suit their needs and expectations. For example, a report for executive management may be more concise, high-level, and businessoriented than a report for technical staff or peers.

• Question 274:

  Which of the following best describes the goal of a tabletop exercise?

  A. To test possible incident scenarios and how to react properly
  B. To perform attack exercises to check response effectiveness
  C. To understand existing threat actors and how to replicate their techniques
  D. To check the effectiveness of the business continuity plan
  A. To test possible incident scenarios and how to react properly

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  Explanation

  A tabletop exercise is a type of simulation exercise that involves testing possible incident scenarios and how to react properly, without actually performing any actions or using any resources. A tabletop exercise is usually conducted by a facilitator who presents a realistic scenario to a group of participants, such as a cyberattack, a natural disaster, or a data breach. The participants then discuss and evaluate their roles, responsibilities, plans, procedures, and policies for responding to the incident, as well as the potential impacts and outcomes. A tabletop exercise can help identify strengths and weaknesses in the incident response plan, improve communication and coordination among the stakeholders, raise awareness and preparedness for potential incidents, and provide feedback and recommendations for improvement.

• Question 275:

  Which of the following statements best describes the MITRE ATT&CK framework?

  A. It provides a comprehensive method to test the security of applications.
  B. It provides threat intelligence sharing and development of action and mitigation strategies.
  C. It helps identify and stop enemy activity by highlighting the areas where an attacker functions.
  D. It tracks and understands threats and is an open-source project that evolves.
  E. It breaks down intrusions into a clearly defined sequence of phases.
  C. It helps identify and stop enemy activity by highlighting the areas where an attacker functions.

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  Explanation

  The MITRE ATT&CK framework is a knowledge base of adversary tactics and techniques based on real-world observations. It helps organizations identify and understand how attackers operate and where they focus their efforts, enabling more effective defense strategies. It highlights areas where an attacker functions during a cyber intrusion, which can help in identifying and stopping their activity.

• Question 276:

  A manufacturing company has joined the information sharing and analysis center for its sector. As a benefit, the company will receive structured IoC data contributed by other members.

  Which of the following best describes the utility of this data?

  A. Other members will have visibility into instances of positive IoC identification within the manufacturing company's corporate network.
  B. The manufacturing company will have access to relevant malware samples from all other manufacturing sector members.
  C. Other members will automatically adjust their security postures to defend the manufacturing company's processes.
  D. The manufacturing company can ingest the data and use tools to autogenerate security configurations for all of its infrastructure.
  D. The manufacturing company can ingest the data and use tools to autogenerate security configurations for all of its infrastructure.

• Question 277:

  Following a recent security incident, the Chief Information Security Officer is concerned with improving visibility and reporting of malicious actors in the environment. The goal is to reduce the time to prevent lateral movement and potential data exfiltration.

  Which of the following techniques will best achieve the improvement?

  A. Mean time to detect
  B. Mean time to respond
  C. Mean time to remediate
  D. Service-level agreement uptime
  A. Mean time to detect

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  Explanation

  Mean time to detect (MTTD) is a metric that measures how quickly an organization can identify a security incident or a malicious actor in the environment. Reducing MTTD can improve visibility and reporting of threats, as well as prevent lateral movement and data exfiltration by detecting them sooner.

• Question 278:

  An analyst is reviewing the following output:

  

  Vulnerability found: Improper neutralization of script-related HTML tag

  Which of the following was most likely used to discover this?

  A. Reverse engineering using a debugger
  B. A static analysis vulnerability scan
  C. A passive vulnerability scan
  D. A database vulnerability scan
  B. A static analysis vulnerability scan

• Question 279:

  A security operations manager wants to build out an internal threat-hunting capability.

  Which of the following should be the first priority when creating a threat-hunting program?

  A. Establishing a hypothesis about which threats are targeting which systems
  B. Profiling common threat actors and activities to create a list of IOCs
  C. Ensuring logs are sent to a centralized location with search and filtering capabilities
  D. Identifying critical assets that will be used to establish targets for threat-hunting activities
  C. Ensuring logs are sent to a centralized location with search and filtering capabilities

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  Explanation

  By aggregating logs in a centralized location with search and filtering capabilities, security analysts can quickly and easily identify anomalous behavior that may indicate a potential threat. Additionally, a centralized location makes it easier to correlate events across multiple systems and identify patterns that may be indicative of an attack.

• Question 280:

  A security analyst needs to develop a solution to protect a high-value asset from an exploit like a recent zero-day attack.

  Which of the following best describes this risk management strategy?

  A. Avoid
  B. Transfer
  C. Accept
  D. Mitigate
  D. Mitigate

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  Explanation

  Comprehensive Detailed Explanation:The best approach to address the risk of a zero-day attack is mitigation. Here's an explanation of each option:

  A. Avoid

  B. Transfer

  C. Accept

  References:

  NIST SP 800-30: Guide for Conducting Risk Assessments. OWASP Risk Rating Methodology: Techniques for assessing and mitigating security risks.