CRISC IT Risk Assessment Practice Question
A company has an inherent risk score of 20 for a specific threat. After implementing controls, the control effectiveness is assessed as 60% (design adequacy 70%, operating effectiveness 85%). What is the approximate residual risk score?
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
✓
8
Residual risk = Inherent risk × (1 - Control effectiveness). Control effectiveness = 0.6. Residual risk = 20 × 0.4 = 8.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
14
Why it's wrong here
Incorrect calculation.
- ✗
6
Why it's wrong here
This might result from incorrectly using only one factor.
- ✓
8
Why this is correct
20 × (1 - 0.6) = 8.
- ✗
12
Why it's wrong here
This would be if control effectiveness were 40%.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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