CompTIA Server+ (SK0-004) — Question 65

An administrator is attempting an OS upgrade on a VM disk that is stored on a SAN. In the event of a failure, the administrator wants to ensure the system can return to a working state in the shortest amount of time possible. Which of the following backup methods would BEST accomplish this?

Answer options

• A. A storage-level snapshot made on the SAN
• B. A full file-system backup stored on the SAN
• C. A full file-system backup stored on an LTO tape
• D. A system recovery point made with the OS
• E. A bit-level image stored on an SSD in the VM host

Correct answer: B

Explanation

The correct answer is B because a full file-system backup stored on the SAN allows for a rapid restoration of all system files and configurations directly from the same location. Other options, such as snapshots or backups on LTO tapes, may not provide the same speed of recovery due to the potential for slower access times or the need for additional steps in the restoration process.