Daily Term: Backup

Backup

A Backup is a copy of data created to restore the original in case of loss, corruption, or disaster. For example, a company might back up its database nightly to a cloud storage service like AWS S3. Backups can be full (entire dataset), incremental (changes since last backup), or differential, ensuring data recovery, but they require storage space, scheduling, and periodic testing to verify recoverability.

Date: 2025-09-03

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Previous Terms

Disaster Recovery

Restoring systems after a major failure.

Date: 2025-09-02

Failover

Switching to a backup system during a failure.

Date: 2025-09-01