ISC2 CC Security Principles Practice Question
A security analyst is evaluating controls to protect the confidentiality of customer data. Which TWO of the following are effective controls? (Select 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
✓
Encryption of data at rest
Encryption protects data at rest and in transit; access controls restrict unauthorized access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Hashing of passwords
Why it's wrong here
Hashing supports integrity, not confidentiality of data.
- ✗
Redundant network links
Why it's wrong here
Redundancy supports availability.
- ✓
Encryption of data at rest
Why this is correct
Encryption prevents unauthorized disclosure.
- ✗
Regular data backups
Why it's wrong here
Backups support availability, not confidentiality.
- ✓
Role-based access controls
Why this is correct
Access controls enforce least privilege.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
Confidentiality
Confidentiality means keeping sensitive information secret and accessible only to authorized people or systems.
Key term
Encryption
Encryption is the process of converting readable data into a secret code to prevent unauthorized access.
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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.