CRISC IT Risk Assessment Practice Question
A risk practitioner is assessing a customer-facing API that processes payment tokens. The team has documented the threat community, the vulnerability, and the potential loss magnitude, but the assessment stalls because no one can agree on how often the threat would realistically attempt exploitation. Which factor is the practitioner attempting to establish to complete this scenario-based risk analysis?
⚠ Common exam trap
The trap here is conflating how often an attack is attempted with how likely it is to succeed, which is a separate vulnerability-based factor.
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
✓
Threat event frequency, describing how often the threat community is expected to act against the asset.
Scenario-based analysis needs a frequency dimension to convert an identified vulnerability and loss magnitude into a risk estimate. The team has the threat community, the vulnerability, and the loss exposure; the unresolved question of how often exploitation would be attempted is the threat event frequency. Without it, no defensible risk calculation or prioritization can be completed.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Threat event frequency, describing how often the threat community is expected to act against the asset.
Why this is correct
The disagreement concerns how often exploitation would realistically be attempted, which is precisely the frequency of threat events acting against the asset. Establishing this rate lets the team combine it with vulnerability and loss magnitude to derive risk. The scenario explicitly names threat community, vulnerability, and loss magnitude as settled, leaving frequency as the missing factor.
- ✗
Control effectiveness rating for the compensating controls already deployed around the API.
Why it's wrong here
Control effectiveness describes how well existing safeguards reduce loss, not how often an actor would attempt exploitation. The scenario states the team already understands the vulnerability and loss magnitude; what is missing is the frequency dimension. Control effectiveness would modify the resulting risk, but it does not supply the missing attempt-rate input the team is debating.
- ✗
Asset criticality tier assigned by the business owner based on revenue dependency.
Why it's wrong here
Asset criticality expresses how important the API is to the business, which influences prioritization but does not answer how often an attacker would strike. The team's blockage is about frequency of adversarial action, not business importance. Criticality tiers are typically assigned before or alongside analysis and would not resolve a dispute over attempt rates.
- ✗
Residual risk level remaining after the current control set is applied to the API.
Why it's wrong here
Residual risk is an output of the analysis, computed after frequency, vulnerability, and loss magnitude are combined, so it cannot be the missing input the team is debating. The scenario describes an incomplete analysis, not a post-control evaluation. Attempting to state residual risk before frequency is settled would produce an unsupported figure.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official ISACA exam blueprint
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.