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CISM Practice Question: Which TWO of the following are recommended…
Which TWO of the following are recommended practices when conducting a post-incident review? (Select TWO)
⚠ Common exam trap
The CISM exam often tests the distinction between immediate remediation steps (like reimaging systems) and the analytical, process-improvement focus of a post-incident review, leading candidates to mistakenly select technical actions instead of documentation and root cause analysis.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Document lessons learned and improvement actions
Documenting lessons learned and improvement actions is a core output of a post-incident review, enabling the organization to refine security controls, processes, and training. This practice aligns with the continuous improvement cycle in incident management, ensuring that each incident contributes to stronger defenses. Without this documentation, the same vulnerabilities or procedural gaps may be exploited repeatedly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Document lessons learned and improvement actions
Why this is correct
Lessons learned improve future response.
- ✗
Update the incident response plan immediately
Why it's wrong here
Updating the IRP is a follow-up action, not part of the review process.
- ✗
Assign blame to responsible individuals
Why it's wrong here
Post-incident reviews should be blameless to encourage honest reporting.
- ✓
Identify the root cause of the incident
Why this is correct
Understanding root cause prevents recurrence.
- ✗
Reimage all affected systems
Why it's wrong here
Reimaging is part of recovery, not post-incident review.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISM practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISM exam.