CompTIA
CV0-003 · Question #238
CV0-003 Question #238: Real Exam Question with Answer & Explanation
The correct answer is A: Create a snapshot on the hypervisor.. A hypervisor-level snapshot is the fastest and simplest rollback mechanism for short-duration VM changes, capturing the full VM state locally with minimal overhead.
Operations and Support
Question
Before doing a change on a VM, a systems administrator wants to ensure there is an easy and fast way to rollback if needed. The change and testing should take approximately two hours. Which of the following is the EASIEST way to meet this requirement?
Options
- ACreate a snapshot on the hypervisor.
- BMake an on-demand, incremental backup to a VTL.
- CMake an on-demand, full backup to a secondary location.
- DCreate a snapshot on a remote storage array.
Explanation
A hypervisor-level snapshot is the fastest and simplest rollback mechanism for short-duration VM changes, capturing the full VM state locally with minimal overhead.
Common mistakes.
- B. An incremental backup to a Virtual Tape Library requires transferring data across the network to external storage, making restoration slower and more operationally complex than a local snapshot.
- C. A full backup to a secondary location involves copying all VM data offsite, which is time-consuming to create and even slower to restore, making it impractical for a fast rollback within a two-hour window.
- D. A snapshot on a remote storage array requires network communication with external storage infrastructure, adding latency and complexity compared to a snapshot managed directly by the local hypervisor.
Concept tested. VM snapshot creation for rapid rollback on hypervisor
Topics
#VM snapshot#rollback strategy#change management#backup
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