CRISC Risk Response and Mitigation Practice Question
Exhibit
Refer to the exhibit. Firewall policy excerpt: access-list 100 deny ip 203.0.113.0 0.0.0.255 any deny ip 198.51.100.0 0.0.0.255 any permit ip any any
Based on the exhibit, what is the primary risk response strategy demonstrated by this firewall rule?
⚠ Common exam trap
A common mix-up: candidates confuse risk mitigation (reducing risk with controls) with risk avoidance (eliminating the risk by ceasing the activity), as candidates often think blocking a port is 'avoiding' the risk when it is actually reducing it while the underlying service remains operational.
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
✓
Risk Mitigation
The firewall rule denies inbound traffic on TCP port 443 (HTTPS) from any source to any destination. This directly reduces the attack surface by blocking a specific protocol, which is a classic risk mitigation action. By implementing a technical control to reduce the likelihood or impact of a threat, the organization is applying risk mitigation, not transferring, accepting, or avoiding the risk entirely.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Risk Transfer
Why it's wrong here
No transfer of risk to another party.
- ✗
Risk Acceptance
Why it's wrong here
Acceptance would involve no action.
- ✓
Risk Mitigation
Why this is correct
The firewall blocks specific IP ranges, reducing the probability of attacks.
- ✗
Risk Avoidance
Why it's wrong here
Avoidance would mean not using the service at all.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CRISC 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 CRISC exam.