CompTIA Cloud+ Practice Test

Which backup method is MOST used by VM users?

1. Tape backups

2. Cloning

3. Image backups

4. Snapshots

The correct answer is: Snapshots

Snapshots are a widely used backup method among virtual machine (VM) users due to their ability to capture the state of a VM at a specific point in time quickly and efficiently. This capability allows users to revert to that exact state if needed, making them invaluable for testing, updates, or recovery scenarios. Snapshots are generally lightweight and do not require significant additional storage space, especially compared to full image backups, which can be more time-consuming and resource-intensive. Because snapshots can be taken while the VM is running without interruption, they provide a convenient way to maintain operational continuity. This is particularly important in environments where uptime is crucial. The ability to create, manage, and delete snapshots easily through virtualization management tools further enhances their appeal. In contrast, while other backup methods like tape backups and image backups can be effective, they often involve longer processes and may not allow for the same level of flexibility or quick recovery as snapshots. Cloning is also less common for backups since it typically involves creating a complete duplicate of the VM, which can be resource-intensive and less efficient than using snapshots for regular state preservation.