Quick Answer
The answer is Mean Time to Restore Service (MTTR). This metric is the most appropriate for measuring the effectiveness of the Incident Management practice because it directly quantifies the speed and efficiency of restoring normal service operation after an incident, minimizing business impact. While First Call Resolution (FCR) measures service desk performance and SLA compliance tracks contractual obligations, MTTR is the core indicator of how well the incident lifecycle is managed from detection to full recovery. On the ITIL 4 Foundation exam, this question tests your ability to distinguish practice-specific metrics from those belonging to other processes, with a common trap being to confuse MTTR with SLA compliance or FCR. Remember the memory tip: “MTTR = Mission: Time to Restore” — if you need to know how fast you fixed it, MTTR is your target.
This ITIL4F practice question tests your understanding of itil management practices. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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 appropriate for measuring the effectiveness of the Incident Management practice?
Percentage of SLAs met
Why wrong: This is a metric for Service Level Management.
Number of known errors
Why wrong: This is a metric for Problem Management.
Mean Time to Restore Service (MTTR)
MTTR measures the speed of restoring service after an incident.
First Call Resolution (FCR) rate
Why wrong: FCR is a metric for Service Desk performance.
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 Restore Service (MTTR)
Mean Time to Restore Service (MTTR) directly measures how quickly service is restored. Option A is correct. FCR is for Service Desk. SLA compliance is for Service Level Management. Number of known errors is for Problem Management.
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.
Percentage of SLAs met
Why it's wrong here
This is a metric for Service Level Management.
Number of known errors
Why it's wrong here
This is a metric for Problem Management.
Mean Time to Restore Service (MTTR)
Why this is correct
MTTR measures the speed of restoring service after an incident.
Related concept
Read the scenario before looking for a memorised answer.
First Call Resolution (FCR) rate
Why it's wrong here
FCR is a metric for Service Desk performance.
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 Restore Service (MTTR) — Mean Time to Restore Service (MTTR) directly measures how quickly service is restored. Option A is correct. FCR is for Service Desk. SLA compliance is for Service Level Management. Number of known errors is for Problem Management.
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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