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ISC2 CC Practice Question: Which TWO of the following are examples of…
Which TWO of the following are examples of detective security controls? (Choose two.)
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
✓
Security logging and monitoring.
Security logging and monitoring (B) and intrusion detection system (IDS) alerts (C) are detective controls because they identify and record security events after they occur. Data backup and restoration (A) is corrective, encryption (D) is preventive, and firewall rules (E) are preventive.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Data backup and restoration procedures.
Why it's wrong here
Backups are corrective/recovery controls.
- ✓
Security logging and monitoring.
Why this is correct
Log analysis and monitoring detect incidents.
- ✓
Intrusion detection system (IDS) alerts.
Why this is correct
IDS detects malicious activity and generates alerts.
- ✗
Encryption of sensitive data.
Why it's wrong here
Encryption is a preventive control to protect data confidentiality.
- ✗
Firewall rules that block certain traffic.
Why it's wrong here
Firewalls are preventive controls.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
IDS
An IDS is a security system that monitors network or system traffic for suspicious activity and alerts administrators to potential threats, but does not actively block them.
Key term
Firewall
A firewall is a network security system that monitors and controls incoming and outgoing traffic based on predetermined security rules to protect trusted internal networks from untrusted external networks.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 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 CC exam.