Oracle Database Administration from Zero to Hero - Practice - Performing Incremental Backups

The video tutorial covers the process of creating incremental and incrementally updated backups in a non-CDB database. It explains how to perform Level 0 and Level 1 incremental backups, simulate user activity to generate redo entries, and enable Block Change Tracking (BCT) to optimize backup processes. The tutorial also discusses the differences between differential and cumulative backups and concludes with a cleanup process.

What is the purpose of enabling block change tracking (BCT) in a database?

• To reduce the size of the database

• To track changes in database blocks for efficient backups

• To enable automatic database recovery

• To increase the speed of database queries

What is the significance of taking a Level 0 incremental backup?

• It is a full backup of the database

• It only backs up changed data blocks

• It is faster than Level 1 backups

• It does not require any user activity simulation

Why is user activity simulated during the backup process?

• To increase the size of the backup

• To generate redo entries for backup purposes

• To test the database's performance

• To ensure the database is functioning correctly

How does a Level 1 incremental backup differ from a Level 0 backup?

• It is always larger than a Level 0 backup

• It only backs up data blocks changed since the last Level 0 backup

• It does not require any redo log switching

• It is a full backup of the database

What determines the size of a Level 1 incremental backup?

• The total size of the database

• The amount of data changed since the last backup

• The number of users accessing the database

• The speed of the network connection

What is the effect of enabling BCT on incremental backups?

• It increases the time taken for backups

• It reduces the time and resources needed for incremental backups

• It has no effect on backup processes

• It requires additional storage space for backups

What is the purpose of creating incrementally updated backups?

• To ensure backups are stored in multiple locations

• To increase the size of the backup

• To apply changes to image copies for efficient recovery

• To reduce the frequency of backups

How can you distinguish between image copies generated by different backup commands?

• By comparing the creation date

• By looking at the file extension

• By examining the tag value

• By checking the file size

What is the final step in the backup process described in the tutorial?

• Deleting database image copies and backup sets

• Enabling BCT

• Simulating user activity

• Taking a Level 0 backup

What is the role of redo log files in the backup process?

• They are used to increase database performance

• They help generate redo entries for incremental backups

• They are not used in the backup process

• They store the full database backup