Which statement is true about the Database as a Service (DBaaS) instances and Database instances in Oracle Public Cloud?

You enabled block change tracking for faster incremental backups in your database. 

Which background process writes to the change tracking file?

You configured the flash recovery area in the database. 

Which two files would you expect to find in the flash recovery area? (Choose two.)

Examine the following ALTER command: 

SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS; 

What is the purpose of the command?

Tape streaming is not happening while performing RMAN tape backup. 

On investigation, you find that it is not because of the incremental backup or the empty file backup and that RMAN is sending data blocks to tape drive fast enough. 

What could be a solution to make streaming happen during the backup?

You executed the following query: 

Considering that all the redo logs are available, what information can you derive from the output of the preceding query?

Identify the persistent configuration setting for the target database that can be set for the backup by using RMAN. (Choose all that apply.)

Which two tools can be used to configure static service information in the listener.ora file? (Choose two.)