Oracle Database Administration from Zero to Hero - Duplicating a Database Using RMAN - Part II (2 of 2)

The video tutorial covers various methods of duplicating databases using RMAN, including scenarios with and without connections to the target database or recovery catalog. It provides examples of duplication in different environments, such as multi-tenant setups, and offers guidance on handling duplication failures. Key techniques include using backup files, configuring auxiliary channels, and setting parameters for successful duplication.

What is a key reason for duplicating a database from backup files?

• To improve database performance

• To create a test environment

• To increase the size of the database

• To reduce the number of users

When duplicating a database with a connection to the target, what does RMAN use to determine the backup files?

• The Oracle Net Services

• The recovery catalog

• The target database's control file

• The auxiliary database's control file

What does the 'NO FILE NAME CHECK' keyword do in the duplicate command?

• Disables file name verification

• Allows file names to be checked

• Prevents file name conflicts

• Ensures file names are unique

In a scenario where the directory structure is different between hosts, what should be enabled for duplication?

• OMF

• ASM

• Data Guard

• Flashback

What option in the duplicate command skips read-only tablespaces?

• EXCLUDE TABLESPACE

• SKIP READ ONLY

• OMIT TABLESPACE

• IGNORE READ ONLY

What must be done if the backup files are not accessible on the destination host?

• Change the directory structure

• Delete the existing backup files

• Copy them over with the same directory structure

• Recreate the backup files

What command is used to specify the location of data files when duplicating without a target or catalog connection?

• SET NEW NAME FOR DATABASE

• ALLOCATE AUXILIARY CHANNEL

• CONFIGURE CONTROLFILE AUTOBACKUP

• SET DBID

In a multi-tenant environment, what must be set to true to duplicate the target database?

• ENABLE PLUGGABLE DATABASE

• ENABLE FLASHBACK

• ENABLE ARCHIVELOG

• ENABLE DATA GUARD

What is the first step to restart a failed duplication process?

• Run the duplicate command again

• Shut down the auxiliary instance

• Delete any created files

• Check the error stack message

What is a common cause of a failed duplication process?

• Insufficient disk space

• Too many users connected

• Incorrect database version

• Network latency