DS0-001 · Question #86
DS0-001 Question #86: Real Exam Question with Answer & Explanation
The correct answer is D: Full backups and differential backups. Full backups combined with differential backups (D) provide the fastest restoration time because recovery requires only two steps: restoring the most recent full backup, then applying a single differential backup containing all changes since that full backup. This minimizes the n
Question
What combination of backup strategies provides the fastest backup restoration time?
Options
- AIncremental backups and differential backups
- BFull backups and incremental backups
- CPartial backups and incremental backups
- DFull backups and differential backups
Explanation
Full backups combined with differential backups (D) provide the fastest restoration time because recovery requires only two steps: restoring the most recent full backup, then applying a single differential backup containing all changes since that full backup. This minimizes the number of backup sets needed and eliminates chaining.
Why the others are wrong:
- A (Incremental + Differential): Neither strategy alone contains a complete baseline - you need a full backup as the foundation for any restore chain.
- B (Full + Incremental): Incremental backups only capture changes since the last backup of any type, so restoration requires the full backup plus every incremental in sequence - the more incrementals, the slower the restore.
- C (Partial + Incremental): Partial backups only cover a subset of data, making a full system restore incomplete or impossible without additional sets.
Memory tip: Think "Differential = Done in two" - one full restore + one differential = done. Incrementals chain like links; differentials collapse the chain into one step.
Community Discussion
No community discussion yet for this question.