CRISC IT Risk Assessment Practice Question
In the FAIR framework, what does Loss Event Frequency (LEF) represent?
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
✓
The expected number of loss events per year
LEF is the product of Threat Event Frequency (TEF) and Vulnerability (V), representing how often a loss event is expected to occur.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The number of threat events per year
Why it's wrong here
That is Threat Event Frequency (TEF), not LEF.
- ✓
The expected number of loss events per year
Why this is correct
LEF = TEF × V, giving the frequency of losses.
- ✗
The probability that a threat event will result in a loss
Why it's wrong here
That is Vulnerability (V).
- ✗
The total financial loss per event
Why it's wrong here
That is Loss Magnitude (LM).
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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.