FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -The correct answer is countermeasure. Backup is the copying of physical or virtual files or databases to a secondary location for protection in case of equipment failure.

Detailed explanation-2: -In fact, the key difference between backup and copy is precisely that you cannot really copy everything, but backups can. In terms of scope, copy is a subset of backup.

Detailed explanation-3: -A backup means a copy of one or more electronic files created as an alternative in case the original data or system are lost or become unusable (for example, in the event of a system crash or corruption of a disk).

Detailed explanation-4: -The purpose of the backup is to create a copy of data that can be recovered in the event of a primary data failure. Primary data failures can be the result of hardware or software failure, data corruption, or a human-caused event, such as a malicious attack (virus or malware), or accidental deletion of data.