Which backup method is MOST commonly used by VM users?

Which backup method is MOST commonly used by VM users?

• A. Tape backups
• B. Cloning
• C. Image backups
• D. Snapshots

Answer: (D)

Snapshots provide a fast, point-in-time capture of a virtual machine’s state, including its disk contents and, when supported, memory. This makes it easy to quickly revert to a known-good state after trying new software, applying patches, or making risky changes, with minimal downtime. Because hypervisors can create snapshots in seconds and keep the VM running, they fit the daily, iterative management style that VM users rely on. In contrast, tape backups are slower archival processes, full image backups can be heavy and may require downtime or large data handling, and cloning creates a separate full copy rather than offering a quick rollback of the original. For everyday VM workflows that require fast state restoration, snapshots are the most commonly used option.

Snapshots provide a fast, point-in-time capture of a virtual machine’s state, including its disk contents and, when supported, memory. This makes it easy to quickly revert to a known-good state after trying new software, applying patches, or making risky changes, with minimal downtime. Because hypervisors can create snapshots in seconds and keep the VM running, they fit the daily, iterative management style that VM users rely on. In contrast, tape backups are slower archival processes, full image backups can be heavy and may require downtime or large data handling, and cloning creates a separate full copy rather than offering a quick rollback of the original. For everyday VM workflows that require fast state restoration, snapshots are the most commonly used option.