A student reverted a virtual machine to a snapshot taken in the morning, and the work done inside the guest that afternoon disappeared. What did the revert do?
Select an answer to reveal the explanation.
Short Explanation
The snapshot was a photograph from the morning, and going back to it threw away everything written after the photograph. You lost the afternoon's changes inside the guest. The host account, the disk stripe, and a port-test plug were not what the revert touched.
Full Explanation
Reverting to a snapshot returns the guest's disk to the state saved in that snapshot and discards changes made afterward. The afternoon's work was after the morning snapshot, so the revert removed it. The student's host account is separate from the guest disk. A revert does not delete that account. RAID 0 is a disk stripe on a host. Reverting one guest does not convert the host's disks. A loopback plug tests a network port. It is not part of a snapshot revert. Exam caveat: a snapshot is not a backup stored somewhere else. If the only copy of the afternoon's work was inside the guest, the revert is the end of it. Operational check: before a revert, copy anything worth keeping out of the guest, then revert, and confirm the guest matches the morning state.