hardMultiple ChoiceObjective-mapped
CV0-004 Practice Question: A cloud administrator notices that a scheduled…
A cloud administrator notices that a scheduled backup job for a virtual machine has been failing with the error "insufficient storage space". The VM has 100 GB OS disk. The backup solution creates snapshots. What is the most likely cause?
⚠ Common exam trap
A common mix-up: candidates confuse the VM's internal disk space (OS or data disk) with the backup software's temporary storage requirements, leading them to incorrectly select option A or D, when the actual cause is the staging area being full.
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
✓
The backup software requires temporary local storage that is full.
The error 'insufficient storage space' during a snapshot-based backup typically occurs because the backup software requires temporary local storage to stage the snapshot data before transferring it to the backup target. When this staging area (often a local cache or temporary directory) runs out of space, the backup fails. Option B correctly identifies that the backup software's temporary local storage is full, which is a common cause of this error.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The VM's data disk is full.
Why it's wrong here
Incorrect. The VM's data disk being full would not typically cause a snapshot-based backup failure with this error, as snapshots are usually stored separately and the backup process uses temporary storage.
- ✓
The backup software requires temporary local storage that is full.
Why this is correct
Correct. The backup software requires temporary local storage (staging area) to stage snapshot data before transferring. If this staging area is full, the backup fails with 'insufficient storage space'.
- ✗
The backup service is using local disks for staging.
Why it's wrong here
Incorrect. While the backup service may use local disks for staging, the specific error 'insufficient storage space' indicates that the staging area is full, not just that it is being used. Option B more precisely identifies the cause.
- ✗
The snapshot is being stored on the same disk as the OS.
Why it's wrong here
Incorrect. Snapshots are typically stored on a separate volume or backup target, not on the same OS disk. Storing snapshots on the OS disk would cause disk space issues, but the error is about the backup staging area.
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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.