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CISA Practice Question: Based on the backup logs, the backup…
Exhibit
Refer to the exhibit. ``` Backup Log for ArcServe UDP – 2024-05-21 ======================================== Job Name: Full_Backup_Weekly Start Time: 02:00 End Time: 04:30 Status: Completed with warnings Details: - Volume C: Backup successful (40.5 GB) - Volume D: Backup successful (120.2 GB) - Volume E: Backup failed (error code 0x80070020 – file in use) - Volume F: Backup successful (25.0 GB) Job Name: Incremental_Backup_Daily Start Time: 12:00 End Time: 12:45 Status: Failed Details: - Volume C: Backup failed (error code 0x807800C5 – insufficient storage) - Volume D: Backup failed (error code 0x807800C5 – insufficient storage) - Volume E: Backup failed (error code 0x807800C5 – insufficient storage) - Volume F: Backup failed (error code 0x807800C5 – insufficient storage) ```
Based on the backup logs, the backup administrator notices that the incremental backup job failed due to insufficient storage. Which TWO actions should the administrator take to resolve the immediate issue and prevent recurrence?
⚠ Common exam trap
A common mix-up: candidates confuse a storage capacity issue with a performance issue (Option B) or incorrectly assume that increasing backup frequency (Option C) reduces data volume, when in fact it increases the number of backup objects and metadata overhead.
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
✓
Free up space on the backup storage device by removing old backup sets manually
Freeing up space on the backup storage device by removing old backup sets immediately resolves the insufficient storage issue that caused the incremental backup job to fail. This is a direct, short-term fix that reclaims capacity without altering backup schedules or configurations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Free up space on the backup storage device by removing old backup sets manually
Why this is correct
This addresses the immediate 'insufficient storage' error by freeing up space for the next backup.
- ✗
Check network bandwidth between the backup server and storage device
Why it's wrong here
The error code indicates insufficient storage, not a network issue.
- ✗
Increase the frequency of incremental backups to reduce data volume per job
Why it's wrong here
Increasing backup frequency would increase storage consumption, worsening the storage shortage.
- ✓
Configure backup retention policies and enable data deduplication on the backup device
Why this is correct
Retention policies control how long backups are kept, and deduplication reduces storage consumption, preventing future storage shortages.
- ✗
Investigate and resolve the file-in-use warnings from the full backup job
Why it's wrong here
While file-in-use issues are important, they are not directly related to the storage failure of the incremental backup.
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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.