CS0-003 Valid Exam Topics - Valid CS0-003 Test Papers

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CompTIA CS0-003 Exam Syllabus Topics:

SectionWeightObjectives
Security Operations33%- Threat intelligence usage
  • 1. Indicators of Compromise (IoCs)
    • 2. Threat actor profiling
      - Monitoring security environments
      • 1. Log analysis and interpretation
        • 2. SIEM analysis and alerting
          Incident Response and Management33%- Incident handling lifecycle
          • 1. Containment, eradication, recovery
            • 2. Detection and analysis
              - Reporting and communication
              • 1. Stakeholder communication
                • 2. Incident documentation
                  Vulnerability Management34%- Remediation and mitigation
                  • 1. Patch management
                    • 2. Risk prioritization
                      - Vulnerability identification
                      • 1. Assessment of system weaknesses
                        • 2. Scanning tools and techniques

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                          CompTIA Cybersecurity Analyst (CySA+) Certification Exam Sample Questions (Q346-Q351):

                          NEW QUESTION # 346
                          The security team is reviewing a list of vulnerabilities present on the environment, and they want to prioritize the remediation based on the CVSS v4.0 metrics:

                          Which of the following vulnerabilities should the security manager request to fix first?

                          Answer: C

                          Explanation:
                          Using CVSS v4.0, the highest-priority remediation is typically the vulnerability that is most remotely exploitable and requires the least attacker effort (low complexity, no special conditions, low/no privileges, and no user interaction).
                          System D is the strongest "fix first" candidate because it combines:
                          AV:N (Network) → remotely exploitable over the network; severity increases the more remote the attacker can be.
                          AC:L (Low) → easier to exploit than High complexity.
                          AT:N (None) → "does not depend on deployment/execution conditions"; attacker can expect the exploit to work under most instances.
                          PR:L (Low) → only basic user privileges required (still relatively accessible).
                          UI:N (None) → most important differentiator vs System A. CVSS v4.0 explicitly states: "The resulting score is greatest when no user interaction is required." E:P (Proof-of-Concept) → publicly available PoC code exists (more exploitable than "Unreported"), increasing urgency compared to U.
                          Why not System A (the closest competitor)?
                          System A is also AV:N/AC:L/AT:N/PR:L, but it has UI:A (Active), meaning exploitation requires a targeted user to perform specific actions. CVSS v4.0 defines Active (A) as requiring "specific, conscious interactions... or actively subvert protection mechanisms." System D's UI:N makes it exploitable purely at the attacker's will, which CVSS treats as more severe.
                          Why the others are lower priority
                          System B (AV:A, AC:H, AT:P): adjacent-only, high complexity, and attack requirements present → significantly harder/less broadly exploitable.
                          System C (AV:P) and System E (AV:P): require physical access, which reduces the pool of potential attackers and generally lowers priority versus network-exploitable issues.
                          Reference (Official CVSS v4.0 specification used):
                          FIRST, CVSS v4.0 Specification Document:
                          User Interaction values (None/Passive/Active) and "score is greatest when no user interaction is required" Attack Requirements (AT) definitions (None vs Present) Exploit Maturity (E) values (X/A/P/U) and meanings


                          NEW QUESTION # 347
                          A web application has a function to retrieve content from an internal URL to identify CSRF attacks in the logs. The security analyst is building a regular expression that will filter out the correctly formatted requests. The target URL is https://10.1.2.3/api, and the receiving API only accepts GET requests and uses a single integer argument named "id." Which of the following regular expressions should the analyst use to achieve the objective?

                          Answer: D

                          Explanation:
                          The correct regular expression to match a GET request to this API endpoint is "https://10\.1\.2\.3/api\?id=\d+". This pattern checks for the specific URL with an id parameter that accepts integer values. The syntax \d+ matches one or more digits, which aligns with the requirement for a single integer argument. Other options either use incorrect syntax or do not accurately capture the expected URL format. Regular expressions are vital in filtering and identifying patterns in logs, as recommended by CompTIA Cybersecurity Analyst (CySA+) practices for threat hunting and log analysis.


                          NEW QUESTION # 348
                          A threat hunter seeks to identify new persistence mechanisms installed in an organization's environment. In collecting scheduled tasks from all enterprise workstations, the following host details are aggregated:

                          Which of the following actions should the hunter perform first based on the details above?

                          Answer: A

                          Explanation:
                          The first step should be to perform a public search for malware reports on taskhw.exe, as this file is suspicious for several reasons: it is located in a non-standard path, it has a high CPU usage, it is signed by an unknown entity, and it is only present on one host. A public search can help to determine if this file is a known malware or a legitimate program. If it is malware, the hunter can then take appropriate actions to remove it and prevent further damage. The other options are either premature or ineffective, as they do not provide enough information to assess the threat level of taskhw.exe. Reference: Cybersecurity Analyst+ - CompTIA, taskhw.exe Windows process - What is it? - file.net, Taskhostw.exe - What Is Taskhostw.exe & Is It Malware? - MalwareTips Forums


                          NEW QUESTION # 349
                          Which of the following best describe the external requirements that are imposed for incident management communication? (Choose two).

                          Answer: C,E

                          Explanation:
                          Compliance with regulatory requirements: Many industries are governed by regulations (e.g., GDPR, HIPAA) that impose specific requirements for incident management communication, including timely reporting and disclosure of security incidents.
                          Framework guidelines: Incident management processes often follow established frameworks (e.g., NIST, ISO 27001) that provide guidelines for communication during incidents, ensuring standardized and effective communication.


                          NEW QUESTION # 350
                          Which of the following responsibilities does the legal team have during an incident management event? (Select two).

                          Answer: B,E

                          Explanation:
                          During an incident, the legal team plays a crucial role in handling regulatory compliance and reviewing legal implications, such as contractual obligations and reporting requirements. Advising on regulatory reporting (Option C) ensures the organization meets legal mandates, while reviewing contracts (Option B) can address new or emergency services needed during the incident. According to CompTIA CySA+ and Security+ guidelines, these legal responsibilities are vital for compliance and risk management. Options related to staffing, damage assessments, and clearances typically fall under operational or HR responsibilities rather than legal purview.


                          NEW QUESTION # 351
                          ......

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