CV0-004 · Question #175
A systems administrator is configuring backups on a VM and needs the process to run as quickly as possible, reducing the bandwidth on the network during all times from Monday through Saturday. In…
The correct answer is B. Full backup on Sunday and incremental backups on all other days of the week. A full backup on Sunday combined with incremental backups on all other days satisfies all three goals. Incremental backups only capture changes since the last backup (full or incremental), making them fast and low-bandwidth - this covers Monday through Saturday. A full backup…
Question
A systems administrator is configuring backups on a VM and needs the process to run as quickly as possible, reducing the bandwidth on the network during all times from Monday through Saturday. In the event of data corruption, the management team expects the mean time to recovery to be as low as possible. Which of the following backup methods can the administrator use to accomplish these goals?
Options
- AIncremental backup daily to the cloud
- BFull backup on Sunday and incremental backups on all other days of the week
- CDifferential backup daily to the cloud
- DIncremental backups during off-hours on Monday, Wednesday, and Friday
How the community answered
(55 responses)- A13% (7)
- B56% (31)
- C7% (4)
- D24% (13)
Explanation
A full backup on Sunday combined with incremental backups on all other days satisfies all three goals. Incremental backups only capture changes since the last backup (full or incremental), making them fast and low-bandwidth - this covers Monday through Saturday. A full backup on Sunday provides a solid restoration baseline. For mean time to recovery (MTTR), having a recent full backup limits the number of incremental sets needed to restore, keeping recovery time manageable. Option A lacks a periodic full backup, making recovery slower over time. Option C uses differential backups, which grow larger each day and use more bandwidth. Option D skips several days, increasing data loss risk and recovery complexity.
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