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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which backups save all data every time they carry out a backup?
A
Differential
B
Full
C
Mirror
D
Complete
Explanation: 

Detailed explanation-1: -As the name implies, this type of backup makes a copy of all data to a storage device, such as a disk or tape. The primary advantage to performing a full backup during every operation is that a complete copy of all data is available with a single set of media.

Detailed explanation-2: -Each backup program has its own approach in executing the backup, but there are four common types of backup implemented and generally used in most of these programs: full backup, differential backup, incremental backup and mirror backup.

Detailed explanation-3: -A differential backup backs up only the files that changed since the last full backup rather than the last differential backup.

Detailed explanation-4: -Example of a full backup On Tuesday, the entire directory of folders and files on that drive will be copied. On Friday, any new files added to that drive will be copied and all the existing directory from before will be copied again.

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