Which of the following is the process of salvaging data from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally?

A.
File carving

B.
Virtual backup appliance

C.
Backup

D.
Data recovery

Explanation:
Data recovery is the process of salvaging data from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally. Often the data are being salvaged from storage media such as internal or external hard disk drives, solid-state drives (SSD), USB flash drive, storage tapes, CDs, DVDs, RAID, and other electronics. Recovery may be required due to physical damage to the storage device or logical damage to the file system that prevents it from being mounted by the host operating system.

Answer option C is incorrect. A backup or the process of backing up is making copies of data which may be used to restore the original after a data loss event.

Answer option A is incorrect. File carving is the process of reassembling computer files from fragments in the absence of filesystem metadata.

Answer option B is incorrect. A virtual backup appliance (VBA) is a small virtual machine that backs up and restores other virtual machines.