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Question 98 - D-ISM-FN-23 discussion

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What is a benefit of differential backup over incremental backup?

A.
Incremental backup can expand to contain more data than differential backup.
Answers
A.
Incremental backup can expand to contain more data than differential backup.
B.
Differential backups have longer restore times than incremental backup.
Answers
B.
Differential backups have longer restore times than incremental backup.
C.
Differential backup can expand to contain more data than an incremental backup
Answers
C.
Differential backup can expand to contain more data than an incremental backup
D.
Incremental backups determine the backup copy used to restore the data.
Answers
D.
Incremental backups determine the backup copy used to restore the data.
Suggested answer: C

Explanation:

Differential backups are more efficient than incremental backups because, instead of backing up only the changes made since the last backup, they back up all of the data that has changed since the last full backup. This means that, unlike incremental backups, the size of the differential backup is not limited and can expand to contain more data than an incremental backup. Additionally, differential backups are faster to restore since they only need to read the differential backup and last full backup, rather than all of the incremental backups.

asked 16/09/2024
Dave Stacey
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