ISC2 CC Security Principles Practice Question
An organization uses a digital signature to verify the authenticity of a software update. This supports which part of the CIA triad?
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
✓
Integrity
Digital signatures verify integrity and authenticity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Non-repudiation
Why it's wrong here
Non-repudiation is related but not a CIA element; integrity is the direct answer.
- ✗
Availability
Why it's wrong here
Does not ensure availability.
- ✗
Confidentiality
Why it's wrong here
Does not encrypt data.
- ✓
Integrity
Why this is correct
Correct. Digital signatures ensure data has not been altered.
Go deeper
Related to this question
Learn chapter
Logical Access Controls
Key term
Integrity
Integrity is the assurance that data has not been altered or tampered with in an unauthorized way, preserving its accuracy and consistency from source to destination.
Key term
CIA triad
The CIA triad is a foundational security model that guides organizations in protecting data through confidentiality, integrity, and availability.
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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.