Oracle Database Administration from Zero to Hero - Performing Incremental Backups (3 of 3)

The video tutorial explains Oracle's incremental backup process and introduces Block Change Tracking (BCT) to enhance backup efficiency. BCT maintains a file with changed block addresses, allowing RMAN to quickly identify changes without scanning all data blocks. The tutorial covers BCT file management, enabling and configuring BCT, and provides best practices for using incremental backups. It also includes queries to evaluate BCT effectiveness and concludes with a summary of key learning outcomes.

What is the primary purpose of Block Change Tracking (BCT) in Oracle?

• To increase the size of the database

• To speed up the incremental backup process

• To track user activity

• To replace full backups

How many incremental backups can the BCT file hold information for before a full backup is needed?

• 8

• 7

• 6

• 5

What is the initial size of a newly created BCT file?

• 10 megabytes

• 15 megabytes

• 20 megabytes

• 5 megabytes

What happens to the BCT file when BCT is disabled in a database?

• It remains unchanged

• It is moved to a backup location

• It is automatically deleted

• It is archived

Which statement is used to relocate the BCT file?

• ALTER DATABASE MOVE

• ALTER DATABASE RENAME

• ALTER DATABASE CHANGE

• ALTER DATABASE SHIFT

In which environment should the BCT file be set and shared?

• Test environment

• Iraq environment

• Production environment

• Development environment

What is the recommended type of incremental backup to use during weekdays?

• Full backups

• Cumulative incremental backups

• Differential incremental backups

• No backups