CAS-004 Governance, Risk, and Compliance Practice Question
Using the FAIR model, which of the following best describes the factor that represents the probable frequency of a threat acting on a vulnerability?
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
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Threat event frequency (TEF)
In FAIR, threat event frequency (TEF) is the probable number of times a threat agent will act on a vulnerability in a given timeframe.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Threat event frequency (TEF)
Why this is correct
TEF measures how often a threat acts on a vulnerability.
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Vulnerability
Why it's wrong here
Vulnerability is a weakness, not a frequency.
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Loss event frequency (LEF)
Why it's wrong here
LEF is the frequency of loss events, not threat events.
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Control effectiveness
Why it's wrong here
Control effectiveness influences loss magnitude, not frequency.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.