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ISC2 CC Practice Question: Which TWO of the following are examples of…
Which TWO of the following are examples of preventive security controls?
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
✓
Antivirus software
Firewalls and antivirus software are preventive controls that block or stop attacks. IDS is detective, encryption is protective but not primarily preventive, and backup is corrective.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Encryption
Why it's wrong here
Encryption protects data but is not typically classified as preventive.
- ✗
Backup
Why it's wrong here
Backup is a corrective control for recovery.
- ✓
Antivirus software
Why this is correct
Antivirus prevents malware execution.
- ✓
Firewall
Why this is correct
Firewalls block unauthorized traffic, preventing attacks.
- ✗
Intrusion detection system
Why it's wrong here
IDS detects but does not prevent intrusions.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Encryption
Encryption is the process of converting readable data into a secret code to prevent unauthorized access.
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.
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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.