世界基準の200-201問題集

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Cisco 200-201 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Intrusion Analysis20%- Map events to source technologies
  • 1. Firewall
    • 2. IDS/IPS
      • 3. NetFlow
        - Compare deep packet inspection, filtering, and stateful firewall
        - Analyze transactional data in network traffic
        - Identify intrusions and anomalies in packet captures
        - Compare inline traffic interrogation and monitoring
        - Use basic regular expressions
        Topic 2: Security Concepts20%- Identify challenges of data visibility
        - Compare access control models
        • 1. Authentication, authorization, accounting
          • 2. Discretionary access control
            • 3. Mandatory access control
              • 4. Nondiscretionary access control
                - Compare rule-based, behavioral, and statistical detection
                - Compare security deployments
                • 1. Network, endpoint, and application security systems
                  • 2. Legacy antivirus and antimalware
                    • 3. Cloud security deployments
                      • 4. Agentless and agent-based protections
                        • 5. Container and virtual environments
                          • 6. SIEM, SOAR, and log management
                            - Describe security terms
                            • 1. Reverse engineering
                              • 2. Threat intelligence
                                • 3. Sliding window anomaly detection
                                  • 4. Principle of least privilege
                                    • 5. Malware analysis
                                      • 6. Threat intelligence platform
                                        • 7. Threat hunting
                                          • 8. Threat actor
                                            • 9. Zero trust
                                              • 10. Run book automation
                                                - Describe principles of defense-in-depth strategy
                                                - Compare security concepts
                                                • 1. Risk, threat, vulnerability, exploit
                                                  - Interpret 5-tuple approach
                                                  - Describe the CIA triad
                                                  Topic 3: Security Policies and Procedures15%- Explain compliance and data privacy requirements
                                                  - Describe server profiling and data protection
                                                  - Explain incident response plan elements (NIST SP800-61)
                                                  - Describe security management concepts
                                                  - Apply incident handling process
                                                  • 1. Post-incident analysis
                                                    • 2. Preparation
                                                      • 3. Containment, eradication, recovery
                                                        • 4. Detection and analysis
                                                          Topic 4: Security Monitoring25%- Use data types in security monitoring
                                                          - Describe social engineering attacks
                                                          - Identify suspicious patterns and anomalies
                                                          - Interpret logs, alerts, and telemetry data
                                                          - Classify network and application attacks
                                                          - Compare attack surface and vulnerability concepts
                                                          - Classify endpoint-based attacks
                                                          - Identify certificate components and security impact
                                                          Topic 5: Host-Based Analysis20%- Interpret malware analysis tool output
                                                          - Explain role of attribution in investigations
                                                          - Detect unauthorized access and system compromise
                                                          - Describe endpoint security technologies
                                                          - Analyze OS, application, and command-line logs
                                                          - Describe operating system components
                                                          - Compare tampered and untampered disk images
                                                          - Identify log types and sources

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                                                          Cisco Understanding Cisco Cybersecurity Operations Fundamentals 認定 200-201 試験問題 (Q250-Q255):

                                                          質問 # 250
                                                          Refer to the exhibit.

                                                          Which technology generates this log?

                                                          正解：B

                                                          解説：
                                                          The log in the exhibit is generated by a firewall. It shows a deny action taken on TCP traffic, specifying the source and destination addresses and ports, which is characteristic of firewall logs. Firewalls are designed to control incoming and outgoing network traffic based on predetermined security rules, and this log entry reflects the enforcement of such a rule.
                                                          References :=
                                                          Cisco's official documentation on firewall technologies and their log formats.


                                                          質問 # 251
                                                          The security team has detected an ongoing spam campaign targeting the organization. The team's approach is to push back the cyber kill chain and mitigate ongoing incidents. At which phase of the cyber kill chain should the security team mitigate this type of attack?

                                                          正解：D


                                                          質問 # 252
                                                          What is the difference between the ACK flag and the RST flag?

                                                          正解：D

                                                          解説：
                                                          ACK (Acknowledgment) Flag:
                                                          The ACK flag is used within the TCP header to acknowledge the successful receipt of data. When this flag is set, it indicates that the receiving party has received a packet and acknowledges a sequence number. It confirms the successful receipt of a segment and acknowledges the next expected sequence number.
                                                          It plays a crucial role in ensuring the reliable delivery of data in TCP, confirming that data has been received without errors.
                                                          RST (Reset) Flag:
                                                          The RST flag is used in TCP to immediately terminate a connection. It is employed in scenarios where an unexpected or abnormal condition occurs, such as when attempting to communicate with a closed or non-existent port.
                                                          When a device receives a packet with the RST flag set, it instantly terminates the connection without going through the typical connection termination process. This flag is essentially used to reset or abort a connection abruptly.


                                                          質問 # 253
                                                          What is a comparison between rule-based and statistical detection?

                                                          正解：C

                                                          解説：
                                                          Rule-based detection methods rely on predefined rules and patterns that are known beforehand. These rules are created based on prior knowledge of what constitutes normal and abnormal behavior.
                                                          Statistical detection, on the other hand, involves analyzing data to identify anomalies. It is based on assumptions about what normal behavior looks like and uses statistical methods to detect deviations from this norm.
                                                          Rule-based systems are typically straightforward but may miss novel attacks that do not match existing rules.
                                                          Statistical methods can detect previously unknown threats by recognizing patterns that deviate from established baselines but may produce more false positives.
                                                          Reference:
                                                          Intrusion Detection Systems (IDS) Concepts
                                                          Comparative Studies on Rule-based and Statistical Anomaly Detection
                                                          Understanding Anomaly Detection in Network Security


                                                          質問 # 254
                                                          A security incident occurred with the potential of impacting business services. Who performs the attack?

                                                          正解：B

                                                          解説：
                                                          A threat actor is a person or entity that is responsible for an incident that impacts or has the potential to impact an organization's security. A threat actor can have various motivations, such as financial gain, espionage, sabotage, or activism. A threat actor can use various methods, such as malware, phishing, denial-of-service, or social engineering, to perform an attack. A threat actor is not the same as a malware author, a bug bounty hunter, or a direct competitor, although they may be related or associated. A malware author is someone who creates malicious software that can be used by threat actors. A bug bounty hunter is someone who finds and reports vulnerabilities in software or systems for a reward. A direct competitor is someone who offers similar products or services as the organization and may seek to gain an advantage over it. References
                                                          := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, page 87; CNSSI
                                                          4009-2015, page 77


                                                          質問 # 255
                                                          ......

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