Backup School Quiz 1, Answer # 3

Here is the answer to Backup School quiz 1, question # 3.

Question #3

What different types of backups can be done?

a. Full, differential, incremental
b. Full, minor, instant
c. Half, major, timed
d. Full, half, continuous

Were you correct? The correct answer is:

a. Full, differential, incremental

Learn more:

As a backup practice, both incremental and differential backups accomplish the same thing: They allow you to reduce the resources needed to backup data. But how they accomplish this task is different.

If archive bits are cleared after each backup, this is called an "incremental" backup. If the archive bits are cleared only after a full backup, then this is a "differential" backup.

An incremental backup clears the archive bits each time data is backed up. This means that each backup will be small. To perform a restore, a copy of the last full backup and each incremental will have to be restored to get all files to their last known state. In most cases, a full backup will be performed weekly while an incremental backup is performed daily.

A differential backup clears archive bits only after a full backup. This means that daily backups get gradually larger, but restore is easier. A full restore only requires the last full backup and the last differential.

Incremental backup allows for a more granular restore, but differential backups are typically easier to restore.

Related articles:
 

Back to the quiz.

 

This was first published in April 2004

Dig Deeper on Data management tools

PRO+

Content

Find more PRO+ content and other member only offers, here.

0 comments

Oldest 

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

-ADS BY GOOGLE

SearchSolidStateStorage

  • Flash technologies remain hot in 2016, experts predict

    Experts predict solid-state technology will remain hot in 2016, leading to the demise of high-speed hard disk drives, as ...

  • Tintri VMstore T5000

    Like all of its VM-aware storage systems, Tintri’s first all-flash array -- the Tintri VMstore T5000 -- allows admins to bypass ...

  • SolidFire SF9605

    The high-capacity SolidFire SF9605 uses SolidFire’s Element OS 8 (Oxygen) to deliver new enterprise features such as synchronous ...

SearchVirtualStorage

SearchCloudStorage

SearchDisasterRecovery

SearchDataBackup

Close