Quick Answer
The answer is risk avoidance, because eliminating the use of the third-party service removes the risk entirely rather than transferring, mitigating, or accepting it. This technical concept is central to the CRISC framework: risk avoidance means ceasing the activity that introduces the risk, making it the only response that brings residual risk to zero. On the Certified in Risk and Information Systems Control exam, this scenario tests your ability to distinguish avoidance from mitigation (which reduces but does not eliminate risk) and from transfer (like insurance). A common trap is confusing avoidance with mitigation when a service is replaced with a lower-risk alternative—that would still be mitigation, not avoidance. A strong memory tip: think of the phrase “stop using” as your trigger—if the organization completely walks away from the activity, it’s avoidance. For the CRISC exam, remember that avoidance is the only risk response that guarantees the risk no longer exists.
This CRISC practice question tests your understanding of risk response and mitigation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
After a risk assessment, a company decides to stop using a third-party service that has high residual risk. This is an example of:
Risk Mitigation
Why wrong: Mitigation would involve implementing controls while continuing to use the service.
Risk Avoidance
Avoidance is the decision not to engage in the risk-prone activity.
Risk Transfer
Why wrong: Transfer would involve shifting the risk, not stopping the activity.
Risk Acceptance
Why wrong: Acceptance would mean continuing with the risk without action.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Risk Avoidance
Option C is correct because eliminating the use of the service removes the risk entirely, which is avoidance.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Risk Mitigation
Why it's wrong here
Mitigation would involve implementing controls while continuing to use the service.
Risk Avoidance
Why this is correct
Avoidance is the decision not to engage in the risk-prone activity.
Related concept
Static NAT maps one inside address to one outside address.
Risk Transfer
Why it's wrong here
Transfer would involve shifting the risk, not stopping the activity.
Risk Acceptance
Why it's wrong here
Acceptance would mean continuing with the risk without action.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CRISC NAT questions on configuration and troubleshooting.
Risk Response and Mitigation — study guide chapter
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FAQ
Risk Response and Mitigation — This question tests Risk Response and Mitigation — Static NAT maps one inside address to one outside address..
The correct answer is: Risk Avoidance — Option C is correct because eliminating the use of the service removes the risk entirely, which is avoidance.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CRISC NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
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.
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