CAS-004 Security Operations Practice Question
Which phase of the incident response lifecycle involves removing the threat from the environment and restoring systems to normal operations?
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
✓
Eradication
Eradication removes the threat; recovery restores normal operations. The question combines both, but typically 'eradication' is the removal phase.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Lessons Learned
Why it's wrong here
Lessons learned is the final phase for improvement.
- ✗
Containment
Why it's wrong here
Containment limits the impact.
- ✓
Eradication
Why this is correct
Eradication removes the threat from the environment.
- ✗
Detection
Why it's wrong here
Detection identifies the incident.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.