CISA Practice Question: Information Systems Operations and Business Resilience
An organization's backup strategy includes daily incremental backups and weekly full backups. During a disaster recovery test, the restoration of a critical server fails because a required incremental backup is corrupt. Which control should the organization implement to verify the integrity of backups?
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
✓
Perform periodic restore verification tests
Regular restore verification tests confirm that backups can be successfully restored. This is a key control to ensure backup 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.
- ✗
Implement backup encryption
Why it's wrong here
Encryption protects confidentiality, not integrity.
- ✗
Use a different backup software
Why it's wrong here
Changing software does not address the lack of verification.
- ✓
Perform periodic restore verification tests
Why this is correct
Restore verification tests validate that backups are usable and complete.
- ✗
Increase the frequency of full backups
Why it's wrong here
More full backups do not verify integrity; they just create more copies.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA 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 CISA exam.