CRISC Risk Response and Reporting Practice Question
Which of the following is a detective control?
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
✓
Intrusion detection system (IDS)
Intrusion detection systems (IDS) monitor network traffic and alert on suspicious activity after it occurs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Backup and recovery plan
Why it's wrong here
Backup is a corrective control.
- ✓
Intrusion detection system (IDS)
Why this is correct
IDS detects and alerts on potential intrusions.
- ✗
Firewall
Why it's wrong here
Firewall is a preventive control.
- ✗
Data encryption
Why it's wrong here
Encryption is a preventive/deterrent control.
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JA
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.