CAS-004 Governance, Risk, and Compliance Practice Question
A security team is measuring the effectiveness of its incident response process. Which of the following metrics would best indicate how quickly the team can contain an incident after it is detected?
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
✓
Mean time to respond (MTTR)
Mean time to respond (MTTR) measures the time from detection to containment, which is directly relevant to incident response effectiveness.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Mean time to respond (MTTR)
Why this is correct
Correct: MTTR measures the time to respond and contain an incident.
- ✗
Vulnerabilities by severity
Why it's wrong here
This is a vulnerability management metric.
- ✗
Patch compliance percentage
Why it's wrong here
Patch compliance is a preventive metric.
- ✗
Mean time to detect (MTTD)
Why it's wrong here
MTTD measures detection time, not response time.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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