CompTIA Tech+ (FC0-U71)Data and Database FundamentalsMedium
A company backs up its file server nightly to a local NAS device in the same building. To better protect against a fire or flood destroying the building, which additional step should the IT administrator take?
- AIncrease the frequency of backups to twice daily
- BEncrypt the backup files on the local NAS
- CSwitch from incremental to differential backups
- DStore a copy of the backup at an offsite or cloud location
Show answer & explanationAnswer & explanation
Correct answer: D. Store a copy of the backup at an offsite or cloud location
Storing a copy offsite (or in the cloud) protects against site-wide disasters like fire or flood that could destroy both the original data and a local backup. Increasing frequency, changing backup type, or encrypting files does not address the risk of losing all copies in a single physical location.
Why the other options are wrong
- A. More frequent backups reduce data loss but do not protect against destroying the building.
- B. Encryption protects confidentiality but does not prevent physical destruction of the backup.
- C. Backup type only affects how much data is captured, not physical location risk.
Offsite Backup Storage
Keeping a copy of backup data in a physically separate location or in the cloud to protect against site-wide disasters like fire, flood, or theft.
- Protects data even if the primary site is destroyed
- Often implemented via cloud storage or a remote data center
- A key component of the 3-2-1 backup rule
Memory trick: Don't keep all your eggs in one building — send a copy to the cloud.