SK0-005 · Question #110
A server administrator was asked to implement a site backup solution. The backup window during regular business days is from midnight to 6:00 a.m. because end-of-cycle payroll processing will occur…
The correct answer is C. Perform daily differential backups. To satisfy a short backup window while still offering a faster restore than incremental, daily differential backups are the best methodology as they back up all changes since the last full backup.
Question
A server administrator was asked to implement a site backup solution. The backup window during regular business days is from midnight to 6:00 a.m. because end-of-cycle payroll processing will occur for the next three months. Which of the following backup methodologies would satisfy this restriction in performing short backups?
Options
- APerform daily incremental backups.
- BPerform daily full backups.
- CPerform daily differential backups.
- DPerform daily normal backups.
How the community answered
(29 responses)- A3% (1)
- B10% (3)
- C83% (24)
- D3% (1)
Why each option
To satisfy a short backup window while still offering a faster restore than incremental, daily differential backups are the best methodology as they back up all changes since the last full backup.
Incremental backups only back up data that has changed since the last backup of any type, resulting in very short backup times but requiring all incremental backups and the last full backup for a restore, which can be time-consuming.
Daily full backups copy all selected data every time, which consumes the most time and storage space, making it unsuitable for a short backup window of 6 hours.
Differential backups only back up the data that has changed since the last full backup. This approach results in relatively short daily backup times (shorter than full backups) and offers a faster restore process than incremental backups, as it only requires the last full backup and the latest differential backup. This balances backup time efficiency with restore time efficiency, making it suitable for a limited backup window.
Normal backup is another term for a full backup, which, as explained, is too time-consuming for a restricted backup window.
Concept tested: Backup methodologies - incremental, differential, full
Source: https://learn.microsoft.com/en-us/windows/win32/backup/types-of-backups
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