CRISC Risk Response and Reporting Practice Question
Which type of control is designed to stop an undesirable event from occurring?
⚠ Common exam trap
Watch out — candidates often confuse preventive controls with detective controls, mistakenly thinking that monitoring or alerting (detective) can stop an event, when in fact prevention requires proactive blocking mechanisms like access control lists (ACLs) or input validation.
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
✓
Preventive control
Preventive control is designed to stop an undesirable event from occurring by enforcing policies or technical barriers before the event happens. For example, a firewall rule that blocks inbound traffic on port 23 (Telnet) prevents unauthorized remote access attempts, directly reducing the likelihood of a security incident.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Corrective control
Why it's wrong here
Corrective controls fix issues after detection.
- ✓
Preventive control
Why this is correct
Preventive controls aim to stop events from happening.
- ✗
Directive control
Why it's wrong here
Directive controls guide behavior but do not prevent events.
- ✗
Detective control
Why it's wrong here
Detective controls identify events after they occur.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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