CS0-004更新版 & CS0-004資格講座

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CompTIA CS0-004 Exam Syllabus Topics:

SectionWeightObjectives
Incident Response and Management24%- Incident Investigation
  • 1. Post-incident activities and lessons learned
    • 2. Digital evidence and forensic considerations
      - Incident Response Processes
      • 1. Incident detection, containment, eradication, and recovery
        • 2. Incident response tools and techniques
          Security Operations34%- Security Operations and Architecture
          • 1. Indicators of malicious activity and analysis
            • 2. Logging, monitoring, and network architecture
              - Threat Intelligence and Hunting
              • 1. Threat intelligence concepts and sources
                • 2. Threat hunting, detection, and response tools
                  Vulnerability Management26%- Vulnerability Response
                  • 1. Security controls and mitigation
                    • 2. Risk prioritization and remediation
                      - Vulnerability Assessment
                      • 1. Scanning methods and vulnerability identification
                        • 2. Vulnerability analysis and validation
                          Reporting and Communication16%- Reporting
                          • 1. Metrics, trends, and recommendations
                            • 2. Vulnerability and incident reports
                              - Communication
                              • 1. Stakeholder communication and escalation
                                • 2. Technical and executive-level communication

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                                  CompTIA Cybersecurity Analyst (CySA+) Certification Exam 認定 CS0-004 試験問題 (Q25-Q30):

                                  質問 # 25
                                  Which of the following best describes why operational technology (OT) devices use compensating controls?

                                  正解：C

                                  解説：
                                  OT systems often use specialized, legacy, or availability-sensitive equipment that cannot support conventional security tools or patches. Compensating controls provide alternative protection without disrupting operations.


                                  質問 # 26
                                  A security analyst reviews the following report:

                                  Which of the following explain the reason the analyst gives 1.15 the highest priority for remediation? (Choose two.)

                                  正解：B、D

                                  解説：
                                  The CVSS vector for vulnerability 1.15 includes PR:N, which means no privileges are required to exploit the vulnerability. This makes exploitation easier and increases risk.
                                  The vector also includes AV:N, which indicates the vulnerability is exploitable over a network.
                                  Remote accessibility significantly increases exposure because attackers do not need local access to the target system.


                                  質問 # 27
                                  Current playbooks for incident response mention resources that have been decommissioned.
                                  Which of the following actions should an analyst take?

                                  正解：D

                                  解説：
                                  Playbooks are part of formal incident response procedures and must remain aligned with current policies, infrastructure, and available resources. When they reference decommissioned resources, the appropriate action is to coordinate with the responsible stakeholders to review and update the policy and procedures so the playbooks accurately reflect the current environment.


                                  質問 # 28
                                  A security architect works with a client on security operations center (SOC) capabilities. The security architect wants to ensure the log correlation and investigation activities are accurate across the infrastructure.
                                  Which of the following is the best for the client to implement?

                                  正解：B

                                  解説：
                                  Accurate time synchronization is essential for reliable log correlation, making Network Time Protocol the best answer. Security investigations routinely combine events from endpoints, servers, authentication infrastructure, firewalls, cloud services, intrusion-detection systems, and other platforms. If those systems maintain inconsistent clocks, the apparent order of events may be incorrect, making it difficult to reconstruct an attack timeline or correlate activity across multiple sources.
                                  NTP is specifically designed to synchronize computer clocks across distributed systems. RFC 5905 defines NTPv4 as a protocol used to synchronize clocks across internet-connected systems. Synchronized timestamps enable the SOC to determine whether events occurring on separate systems actually belong to the same sequence-for example, authentication followed by process execution, lateral movement, and a subsequent network connection.
                                  ZTNA controls access according to Zero Trust principles but does not synchronize timestamps. Account federation addresses identity interoperability. SASE combines network and security services for distributed environments. APIs can integrate tools and exchange information, but integrated data remains difficult to correlate accurately if each system's timestamps are inconsistent.
                                  For forensic and operational analysis, a consistent time reference is therefore foundational to timeline reconstruction, event sequencing, SIEM correlation, and evidentiary accuracy .
                                  Study Guide Reference: Security Operations # Logging and Monitoring # Time Synchronization # NTP # SIEM Correlation # Timeline Analysis.


                                  質問 # 29
                                  An analyst receives the following output:

                                  Which of the following is the correct number of discovered systems that are allowing unencrypted traffic?

                                  正解：C

                                  解説：
                                  TCP port 80 carries unencrypted HTTP traffic and is open on 10.203.20.15 and 10.203.20.10.
                                  SSH on port 22 and HTTPS on port 443 are encrypted.


                                  質問 # 30
                                  ......

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