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CompTIA CS0-004 Exam Syllabus Topics:

SectionWeightObjectives
Security Operations34%- Threat Intelligence and Threat Hunting
  • 1. Threat mapping
    • 2. Cyber deception
      • 3. Tactics, techniques, and procedures
        • 4. Collection methods and sources
          • 5. Indicators of compromise
            • 6. Threat actors
              • 7. Confidence-level impacts
                • 8. Threat modeling
                  - Artificial Intelligence in Security Operations
                  • 1. AI risks
                    • 2. AI governance
                      • 3. AI use cases
                        - Tools for Determining Malicious Activity
                        • 1. Pattern recognition and suspicious command analysis
                          • 2. Sandboxing
                            • 3. Packet analysis
                              • 4. Domain and IP reputation
                                • 5. Log analysis and SIEM
                                  • 6. Endpoint security
                                    • 7. Programming and scripting languages
                                      • 8. Decoding and parsing
                                        • 9. File formats
                                          • 10. Email analysis
                                            • 11. Threat intelligence platforms
                                              • 12. User and entity behavior analysis
                                                • 13. File analysis
                                                  - System and Network Architecture in Security Operations
                                                  • 1. Logging concepts
                                                    • 2. Operating system concepts
                                                      • 3. Data protection concepts
                                                        • 4. Device management concepts
                                                          • 5. Network architecture concepts
                                                            • 6. Identity and access management
                                                              • 7. Encryption techniques
                                                                • 8. Critical infrastructure concepts
                                                                  • 9. Infrastructure and system architecture concepts
                                                                    - Indicators of Potential Malicious Activity
                                                                    • 1. Host-related indicators
                                                                      • 2. Identity-based indicators
                                                                        • 3. Application-related indicators
                                                                          • 4. Email-related attacks
                                                                            • 5. Unauthorized configuration
                                                                              • 6. Social engineering attacks
                                                                                • 7. Cloud-related indicators
                                                                                  • 8. Network-related indicators
                                                                                    - Efficiency and Process Improvement in Security Operations
                                                                                    • 1. Streamline operations
                                                                                      • 2. Data enrichment
                                                                                        • 3. Standardize processes
                                                                                          • 4. Technology and tool integration
                                                                                            • 5. Automation and orchestration
                                                                                              Vulnerability Management26%- Vulnerability Prioritization and Mitigation
                                                                                              • 1. Mitigation strategies
                                                                                                • 2. Context awareness
                                                                                                  • 3. Validation of remediation
                                                                                                    • 4. Scoring methods
                                                                                                      • 5. Vulnerability prioritization criteria
                                                                                                        - Vulnerability Assessment Tools
                                                                                                        • 1. Web application scanners
                                                                                                          • 2. Network scanning and mapping
                                                                                                            • 3. Multipurpose tools
                                                                                                              • 4. Cloud infrastructure assessment tools
                                                                                                                • 5. Vulnerability scanners
                                                                                                                  • 6. Breach attack simulation tools
                                                                                                                    - Control Types, Risks, and Vulnerability Management
                                                                                                                    • 1. Control types
                                                                                                                      • 2. Risk concepts
                                                                                                                        • 3. Application security
                                                                                                                          • 4. Risk management strategies
                                                                                                                            • 5. Third-party risk
                                                                                                                              • 6. Control functions
                                                                                                                                • 7. Policies, governance, and service-level objectives
                                                                                                                                  - Vulnerability Scanning Methods
                                                                                                                                  • 1. Security baseline scanning
                                                                                                                                    • 2. Scan types
                                                                                                                                      • 3. Asset inventory
                                                                                                                                        • 4. Planning considerations
                                                                                                                                          • 5. Discovery
                                                                                                                                            Incident Response and Management24%- Incident Response Process
                                                                                                                                            • 1. Post-incident activities
                                                                                                                                              • 2. Analysis
                                                                                                                                                • 3. Containment
                                                                                                                                                  • 4. Eradication
                                                                                                                                                    • 5. Recovery
                                                                                                                                                      • 6. Detection
                                                                                                                                                        • 7. Preparation
                                                                                                                                                          - Attack Methodology Frameworks
                                                                                                                                                          • 1. Diamond Model of Intrusion Analysis
                                                                                                                                                            • 2. MITRE ATT&CK
                                                                                                                                                              • 3. Cyber Kill Chain
                                                                                                                                                                - Incident Response Techniques
                                                                                                                                                                • 1. Alerts, notifications, and triage
                                                                                                                                                                  • 2. Restoration
                                                                                                                                                                    • 3. Timeline, severity, impact, and prioritization
                                                                                                                                                                      • 4. Isolation and escalation
                                                                                                                                                                        • 5. Log collection, correlation, and enrichment
                                                                                                                                                                          • 6. Playbooks and roles
                                                                                                                                                                            • 7. Corrective action development
                                                                                                                                                                              • 8. Evidence gathering and preservation
                                                                                                                                                                                • 9. Remediation and verification
                                                                                                                                                                                  • 10. Incident response and communication plans
                                                                                                                                                                                    • 11. Training and exercises
                                                                                                                                                                                      • 12. Root cause analysis
                                                                                                                                                                                        Reporting and Communication16%- Security Operations and Incident Response Reporting and Communication
                                                                                                                                                                                        • 1. Post-incident reporting
                                                                                                                                                                                          • 2. Internal threat intelligence report
                                                                                                                                                                                            • 3. Communication plan
                                                                                                                                                                                              • 4. Executive summary
                                                                                                                                                                                                • 5. Incident declaration and escalation
                                                                                                                                                                                                  • 6. Metrics and key performance indicators
                                                                                                                                                                                                    • 7. Shift and incident handover
                                                                                                                                                                                                      • 8. Operational security awareness
                                                                                                                                                                                                        - Vulnerability Management Reporting and Communication
                                                                                                                                                                                                        • 1. Vulnerability scan reports
                                                                                                                                                                                                          • 2. Inhibitors to remediation
                                                                                                                                                                                                            • 3. Risk scorecards
                                                                                                                                                                                                              • 4. Metrics and key performance indicators
                                                                                                                                                                                                                • 5. Stakeholder identification and communication
                                                                                                                                                                                                                  • 6. Compliance findings
                                                                                                                                                                                                                    • 7. Action plans

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                                                                                                                                                                                                                      CompTIA Cybersecurity Analyst (CySA+) Certification Exam Sample Questions (Q140-Q145):

                                                                                                                                                                                                                      NEW QUESTION # 140
                                                                                                                                                                                                                      During a routine review of DNS logs, a security analyst observes that Host X has been making frequent DNS requests to domains with random alphanumeric strings (e.g.. atd8ekthj.xyz). IPS anomaly rules are blocking these domains. This behavior started shortly after a new software Installation on the host. Which of the following should the analyst do first to determine whether Host X has been compromised?

                                                                                                                                                                                                                      Answer: A

                                                                                                                                                                                                                      Explanation:
                                                                                                                                                                                                                      Random, algorithmically generated domain names are a common indicator of malware using domain generation algorithms (DGAs). Checking the queried domains against threat intelligence is the fastest way to confirm whether they are malicious and whether the host is likely compromised.


                                                                                                                                                                                                                      NEW QUESTION # 141
                                                                                                                                                                                                                      A security director at a remote company is concerned about recent threat intelligence reports regarding threat actors who are hired by the company and steal intellectual property. Which of the following solutions are the best ways to identify the tactics, techniques, and procedures (TTPs) used by these threat actors? (Choose two.)

                                                                                                                                                                                                                      Answer: E,F

                                                                                                                                                                                                                      Explanation:
                                                                                                                                                                                                                      User behavioral analytics in a SIEM helps detect insider threat patterns by analyzing deviations from normal user activity, which reveals how malicious insiders operate and exposes their techniques and behaviors.
                                                                                                                                                                                                                      Endpoint detection and response provides deep visibility into endpoint activities, enabling monitoring and investigation of attacker actions on systems, which helps identify the specific techniques and procedures used to exfiltrate data or misuse access.


                                                                                                                                                                                                                      NEW QUESTION # 142
                                                                                                                                                                                                                      Which of the following best describes a type of risk that exists after mitigations or controls are enacted and implemented?

                                                                                                                                                                                                                      Answer: A

                                                                                                                                                                                                                      Explanation:
                                                                                                                                                                                                                      Residual risk is the risk that remains after security controls and mitigation measures have been implemented.


                                                                                                                                                                                                                      NEW QUESTION # 143
                                                                                                                                                                                                                      A security operations center (SOC) manager makes significant updates to the incident response plan and wants to test these updates with all stakeholders collaboratively.
                                                                                                                                                                                                                      Which of the following is the best way to accomplish this task?

                                                                                                                                                                                                                      Answer: D

                                                                                                                                                                                                                      Explanation:
                                                                                                                                                                                                                      A tabletop exercise is the most appropriate method because the objective is to collaboratively validate an updated incident-response plan with relevant stakeholders. Tabletop exercises are discussion-driven simulations in which participants work through a realistic incident scenario, explain their expected actions, identify dependencies, evaluate communication paths, and expose procedural or organizational gaps without performing disruptive live attacks.
                                                                                                                                                                                                                      CISA states that tabletop exercises are used to validate or improve understanding of plans and procedures, rehearse concepts, assess incident-response and recovery requirements, and identify areas requiring improvement. CISA also provides Tabletop Exercise Packages specifically to help stakeholders conduct collaborative exercises and organizational discussions.
                                                                                                                                                                                                                      A red-team event involves active adversary simulation and focuses primarily on testing defensive capabilities against realistic attacker behavior. A penetration test evaluates exploitable technical weaknesses. Security awareness training teaches users security knowledge but does not collaboratively validate incident-response roles, escalation paths, communications, and decision-making.
                                                                                                                                                                                                                      Because the manager recently made significant plan updates , a tabletop exercise provides a controlled mechanism for all stakeholders to determine whether those procedures actually function as intended before a real incident occurs.
                                                                                                                                                                                                                      Study Guide Reference: Incident Response and Management # Preparation # Incident Response Plan # Tabletop Exercises # Stakeholder Coordination # Testing Plans and Procedures.


                                                                                                                                                                                                                      NEW QUESTION # 144
                                                                                                                                                                                                                      Hotspot Question
                                                                                                                                                                                                                      An organization receives an indication that one of its hosts is part of a DDoS attack against a victim. The proxy server is supposed to handle all web page requests from all internal hosts.
                                                                                                                                                                                                                      INSTRUCTIONS
                                                                                                                                                                                                                      Click on each workstation and server to review outputs and a log file.
                                                                                                                                                                                                                      Identify the compromised host and executable, and determine an appropriate remediation for the issue.
                                                                                                                                                                                                                      If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.








                                                                                                                                                                                                                      Answer:

                                                                                                                                                                                                                      Explanation:

                                                                                                                                                                                                                      Explanation:
                                                                                                                                                                                                                      Workstation 2 has a direct HTTPS connection from mozilla.exe to the DDoS target 52.13.86.101, bypassing the required proxy server. Reimaging the compromised workstation removes the malicious software and restores the system to a trusted state.


                                                                                                                                                                                                                      NEW QUESTION # 145
                                                                                                                                                                                                                      ......

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