Quick Answer
The answer is Mean Time to Resolve (MTTR), the metric most commonly used to measure the efficiency of the Incident Management practice in ITIL 4. This is because MTTR directly tracks the average time from when an incident is reported to when it is fully resolved, reflecting how quickly the service desk restores normal service operation. A lower MTTR indicates a more efficient incident management process, as it minimizes business disruption and downtime. On the ITIL 4 Foundation exam, this metric tests your understanding of how efficiency is quantified in the service value system, often appearing in questions that contrast MTTR with other metrics like Mean Time Between Failures (MTBF) or Mean Time to Detect (MTTD). A common trap is confusing MTTR with resolution speed alone—remember that MTTR includes the entire lifecycle of the incident, not just the fix time. Memory tip: “MTTR = Time to Turnaround,” linking the “R” in both “Resolve” and “Return to normal.”
This ITIL4F practice question tests your understanding of itil management practices. 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.
Which metric is MOST commonly used to measure the efficiency of the Incident Management practice?
Availability percentage
Why wrong: Availability is a metric for Availability Management.
Mean Time to Resolve (MTTR)
MTTR is the key metric for Incident Management.
First Call Resolution (FCR)
Why wrong: FCR is a service desk metric.
Customer Satisfaction Score (CSAT)
Why wrong: CSAT is a service desk metric.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Mean Time to Resolve (MTTR)
Mean Time to Resolve (MTTR) measures how quickly incidents are resolved, reflecting efficiency.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Availability percentage
Why it's wrong here
Availability is a metric for Availability Management.
Mean Time to Resolve (MTTR)
Why this is correct
MTTR is the key metric for Incident Management.
Related concept
Read the scenario before looking for a memorised answer.
First Call Resolution (FCR)
Why it's wrong here
FCR is a service desk metric.
Customer Satisfaction Score (CSAT)
Why it's wrong here
CSAT is a service desk metric.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the ITIL4F exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Identify which ITIL4F exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
ITIL Management Practices — study guide chapter
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FAQ
ITIL Management Practices — This question tests ITIL Management Practices — Read the scenario before looking for a memorised answer..
The correct answer is: Mean Time to Resolve (MTTR) — Mean Time to Resolve (MTTR) measures how quickly incidents are resolved, reflecting efficiency.
Identify which ITIL4F exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 21, 2026
This ITIL4F practice question is part of Courseiva's free PeopleCert 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 ITIL4F exam.
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