FC0-U71 Security Practice Question
A security analyst discovers that a file on a server has been modified without authorization. However, the system logs show that the modification was made by an authenticated user who had legitimate access to the file. Which aspect of the CIA triad has been violated?
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
Integrity ensures data is not altered by unauthorized parties. Even though the user was authenticated, the modification was unauthorized, violating integrity.
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 not part of the CIA triad.
- ✓
Integrity
Why this is correct
Unauthorized modification violates integrity.
- ✗
Availability
Why it's wrong here
The system was accessible.
- ✗
Confidentiality
Why it's wrong here
The data was not accessed by an unauthorized person; it was modified.
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Related to this question
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Same concept, more angles
2 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A security analyst is explaining the CIA triad to new employees. Which scenario best illustrates a breach of integrity?
hard- A.An employee accidentally deletes a critical file
- ✓ B.An attacker modifies financial records in a database without authorization
- C.An attacker steals customer credit card numbers from a database
- D.A denial-of-service attack makes a website unavailable
Why B: Integrity means data is not altered without authorization. An unauthorized modification breaches integrity, even if the system remains available and confidential.
Variation 2. A security analyst discovers that a file on a server has been modified without authorization. Which element of the CIA triad has been compromised?
hard- A.Non-repudiation
- ✓ B.Integrity
- C.Availability
- D.Confidentiality
Why B: Integrity ensures that data is not altered unexpectedly. Unauthorized modification violates integrity.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA 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 FC0-U71 exam.