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CV0-004 Practice Question: Uses a cloud-based backup service to back up its…
An organization uses a cloud-based backup service to back up its critical database every night. The backup job has been failing for the past three days with an error message indicating 'insufficient storage space in the backup repository.' The administrator checks the backup repository and finds that it is 80% full. The database is 2 TB in size, and the backup policy retains 7 daily backups. The administrator estimates that each full backup is approximately 500 GB after deduplication. The company's RPO requirement is 24 hours. What should the administrator do to resolve the backup failure without violating the RPO?
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
✓
Delete the oldest full backup that is more than 7 days old.
The backup repository is running out of space. Deleting older backups (beyond the current retention window) frees up space immediately, allowing the next backup to succeed and meet the 24-hour RPO. The retention policy is 7 days, so deleting backups older than 7 days or adjusting retention is appropriate.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Delete the oldest full backup that is more than 7 days old.
Why this is correct
This frees space while still keeping the required 7 days of backups, satisfying the RPO.
- ✗
Increase the backup retention period to 14 days to keep more backups.
Why it's wrong here
This would require even more storage and worsen the space issue.
- ✗
Enable incremental backups instead of full backups to reduce size.
Why it's wrong here
While this could help long-term, it does not immediately solve the current failure; also, initial full backup still needed.
- ✗
Reduce the deduplication ratio to lower storage usage.
Why it's wrong here
Deduplication ratio is not directly configurable and reducing it would increase storage usage.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 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 CV0-004 exam.