CV0-004 Troubleshooting Practice Question
A cloud administrator receives an alert that a VM's disk usage is at 95%. The VM is running a critical database. Which TWO actions should the administrator take to resolve the issue while minimizing downtime?
⚠ Common exam trap
Many candidates choose Option E (add a new disk) thinking it is safer or more standard, but they overlook that expanding the existing disk is faster and causes less downtime for a critical database, and that adding a new disk introduces additional management overhead and potential service interruption.
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
✓
Increase the size of the existing disk
Increasing the size of the existing disk (Option A) is correct because it allows the VM to gain additional storage capacity without requiring a reboot or migration, minimizing downtime. Modern hypervisors and cloud platforms support live resizing of virtual disks, and once the disk is expanded, the OS can extend the partition online using tools like `resize2fs` (Linux) or Disk Management (Windows). This directly addresses the 95% disk usage alert for the critical database with minimal service interruption.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Increase the size of the existing disk
Why this is correct
Many cloud providers allow online disk resizing without rebooting.
- ✗
Shrink an existing partition to free space
Why it's wrong here
Shrinking partitions is risky and may not be supported online.
- ✓
Clear temporary files and logs
Why this is correct
Cleaning logs and temp files can free space quickly and safely.
- ✗
Restore the VM from a recent backup to a larger disk
Why it's wrong here
Restoring from backup causes significant downtime.
- ✗
Add a new disk and move data to it
Why it's wrong here
Moving data requires application downtime and reconfiguration.
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JA
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.