- A
Number of employees
Why wrong: Not a security KPI.
- B
Mean time to detect (MTTD)
Measures detection speed.
- C
Mean time to remediate (MTTRem)
Measures time to fix issues.
- D
Revenue growth
Why wrong: Financial metric, not security incident response.
- E
Mean time to respond (MTTR)
Measures how quickly incidents are responded to.
Question 461 of 1,000
CS0-003 Reporting and Communication Practice Question
This CS0-003 practice question tests your understanding of reporting and communication. 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.
A security analyst is selecting Key Performance Indicators (KPIs) for a security operations dashboard. Which THREE metrics are most relevant for measuring incident response effectiveness? (Select THREE.)
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
✓
Mean time to detect (MTTD)
MTTR measures response time, MTTD measures detection time, and MTTRem measures remediation time. These are key incident response metrics.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Number of employees
Why it's wrong here
Not a security KPI.
- ✓
Mean time to detect (MTTD)
Why this is correct
Measures detection speed.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Mean time to remediate (MTTRem)
Why this is correct
Measures time to fix issues.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Revenue growth
Why it's wrong here
Financial metric, not security incident response.
- ✓
Mean time to respond (MTTR)
Why this is correct
Measures how quickly incidents are responded to.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
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.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
What to study next
Got this wrong? Here's your next step.
Identify which CS0-003 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.
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Reporting and Communication — study guide chapter
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FAQ
Questions learners often ask
What does this CS0-003 question test?
Reporting and Communication — This question tests Reporting and Communication — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Mean time to detect (MTTD) — MTTR measures response time, MTTD measures detection time, and MTTRem measures remediation time. These are key incident response metrics.
What should I do if I get this CS0-003 question wrong?
Identify which CS0-003 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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This CS0-003 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 CS0-003 exam.
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