A network administrator configures a disaster recovery backup schedule consisting of a full system backup executed every Sunday at midnight and differential backups executed every weeknight from Monday through Friday. A storage array fails on Thursday afternoon before Thursday's backup takes place. Which of the following backup sets are required to perform a complete system restoration to the latest available point in time? Select TWO.
- The full backup created on Sunday at midnightCevap
- The differential backup created on Wednesday nightCevap
- CThe differential backup created on Monday night
- DThe differential backup created on Tuesday night
- EAll incremental backups performed between Monday and Wednesday
Cevap
To restore a system configured with a weekly full backup and daily differential backups, the required media are the last baseline full backup (Sunday at midnight) and the most recent differential backup (Wednesday night).
When recovering data from a differential backup strategy, restoration requires exactly two components: the last baseline full backup and the latest differential backup taken before the crash. The Sunday full backup provides the baseline state, and the Wednesday differential backup contains all changes made from Monday through Wednesday.
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Differential Backup Restoration Sequence