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?
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
Answer: B. A full file-system backup stored on the SAN
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Fill in the blank(s) with correct word