Quick Answer
The correct first step when a KRI threshold breach occurs is to validate the data and investigate the root cause. This is because a threshold breach may result from a data integrity issue—such as a configuration error or false positive—rather than an actual increase in risk exposure. In the CRISC exam, this scenario tests your understanding of the risk response lifecycle, emphasizing that verification must precede any corrective or escalatory action. A common trap is jumping to remediation or escalation without confirming the breach is real, which wastes resources and undermines the risk management process. Remember the memory tip: “Verify before you rectify”—always confirm the data’s accuracy and the underlying cause before deciding on a response.
This CRISC practice question tests your understanding of risk and control monitoring and reporting. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A company's key risk indicator (KRI) for 'failed login attempts' has exceeded its threshold by 20%. The control owner reports that a recent firewall change caused false positives. What should the risk practitioner do FIRST?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Validate the KRI data and investigate the root cause
Data integrity check is essential before any action.
Implement additional controls to reduce failed logins
Why wrong: Should verify data first; controls may be unnecessary.
Revert the firewall change immediately
Why wrong: Could disrupt business; need confirmation first.
Increase the KRI threshold to eliminate false positives
Why wrong: Threshold manipulation without analysis hides risk.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Validate the KRI data and investigate the root cause
The correct answer is C. The first step is to verify the KRI data and confirm whether the threshold breach is real or due to a configuration issue. Option A is premature because the threshold breach may be invalid. Option B is corrective action without confirmation. Option D is too drastic without understanding the root cause.
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.
Validate the KRI data and investigate the root cause
Why this is correct
Data integrity check is essential before any action.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Implement additional controls to reduce failed logins
Why it's wrong here
Should verify data first; controls may be unnecessary.
Revert the firewall change immediately
Why it's wrong here
Could disrupt business; need confirmation first.
Increase the KRI threshold to eliminate false positives
Why it's wrong here
Threshold manipulation without analysis hides risk.
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.
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FAQ
Risk and Control Monitoring and Reporting — This question tests Risk and Control Monitoring and Reporting — Static NAT maps one inside address to one outside address..
The correct answer is: Validate the KRI data and investigate the root cause — The correct answer is C. The first step is to verify the KRI data and confirm whether the threshold breach is real or due to a configuration issue. Option A is premature because the threshold breach may be invalid. Option B is corrective action without confirmation. Option D is too drastic without understanding the root cause.
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.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Static NAT maps one inside address to one outside address.
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company has implemented a key risk indicator (KRI) for system availability, with a threshold of 99.5%. The monitoring team observes that availability has dropped to 99.2% for two consecutive months. What is the most appropriate next step?
mediumWhy C: Option C is correct because a sustained breach of a KRI threshold (99.2% vs. 99.5%) for two consecutive months indicates a systemic issue that requires formal risk management action. The risk owner must be notified to assess the impact, and a root cause analysis (RCA) should be initiated to identify underlying failures—such as network congestion, hardware faults, or software bugs—before any remediation is planned.
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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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