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Difficulty: MediumBusiness Continuity and Disaster Recovery

A network administrator needs to restore a corrupted domain controller on Thursday morning. The network backup strategy consists of a full backup executed every Sunday at 00:00, followed by daily incremental backups executed Monday through Wednesday at 23:00. Arrange the restoration steps in the correct chronological order required to recover the server to its most recent state prior to the failure.

  1. 1Restore the full baseline backup from Sunday.
  2. 2Apply the incremental backup from Monday.
  3. 3Apply the incremental backup from Tuesday.
  4. 4Apply the incremental backup from Wednesday.

Answer

The correct order to restore the system using incremental backups is: 1) Restore the full baseline backup from Sunday, 2) Apply the incremental backup from Monday, 3) Apply the incremental backup from Tuesday, and 4) Apply the incremental backup from Wednesday.
Incremental backups capture only data that has changed since the last full or incremental backup and clear the archive bit. Therefore, to fully recover data to the most recent state (Wednesday night), you must first restore the full Sunday baseline backup, followed by every individual incremental backup in exact chronological sequence (Monday, then Tuesday, then Wednesday).

Step-by-Step Solution

1
Identify the backup architecture type
Recognize that incremental backups capture only changes made since the previous backup of any type (full or incremental).
Understanding the backup type determines whether all intermediary backups are required or if only the latest differential backup is needed.
2
Determine the baseline restoration point
Select and restore the Sunday full backup first.
All backup restoration processes require restoring the foundational baseline image (full backup) before any delta changes can be applied.
3
Apply subsequent incremental backups in chronological sequence
Apply Monday's incremental backup, followed by Tuesday's incremental backup, and finally Wednesday's incremental backup.
Because each incremental backup clears the archive bit and depends on the state established by the immediately preceding incremental backup, skipping any incremental set will result in data loss or corrupted file states.

Key Concept

Incremental Backup Restoration Sequence
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Topics

Business Continuity and Disaster Recovery

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