XDR-ANALYST practice question 19 of 35

Which best describes the benefit of automated response playbooks?

Full set: 100 questions
Answer options
A: They ensure consistent and rapid containment actions across incidents Correct answer
B: They reduce the need for forensic validation
C: They eliminate the need for analyst oversight
D: They automatically exclude all false positives
Correct Answer:
A. They ensure consistent and rapid containment actions across incidents
Explanation

The primary benefit of using automated response playbooks, often as part of a Security Orchestration, Automation, and Response (SOAR) capability, is to enforce speed and consistency in incident response. Playbooks codify an organization's standard operating procedures into an automated workflow. When an incident occurs, the playbook executes predefined actions—such as isolating an endpoint, disabling a user account, or blocking an IP address—instantaneously and without deviation. This ensures that every similar incident is handled with the same rapid and effective containment measures, reducing manual effort and minimizing the window of opportunity for attackers.

Why Incorrect

B. They reduce the need for forensic validation: Automation handles response actions, but forensic validation by an analyst is still required to understand the attack and verify the response was appropriate.
C. They eliminate the need for analyst oversight: Playbooks augment, not replace, security analysts. Human oversight is critical for handling exceptions, complex incidents, and playbook tuning.
D. They automatically exclude all false positives: Playbooks act on alerts; they do not inherently determine if an alert is a false positive. That determination is part of the analysis process.

References

1. Palo Alto Networks. (2023). Cortex XDR SOAR Administrator's Guide. "Playbooks". The documentation states, "Playbooks are task-oriented and are used to automate the security actions that you would typically perform in an investigation... Playbooks help you to automate and orchestrate tasks, resulting in more efficient and consistent incident management."

2. Palo Alto Networks. (2023). Cortex XDR Administrator's Guide. "Automated Response". The guide highlights that automation allows for "a consistent and scalable response across your organization" and enables you to "immediately act on threats by running response actions."

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