Which two are true about RMAN duplexed backup sets? (Choose two.)

The correct answer is B. A non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set D. A non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set. https://docs.oracle.com/cd/E18283_01/backup.112/e10642/rcmbckad.htm#i1006180 "You cannot back up from tape to tape or from tape to disk: only from disk to disk or disk to tape." https://docs.oracle.com/en/database/oracle/oracle-database/19/rcmrf/BACKUP.html#GUID…

Perform Advanced RMAN Concepts

Question

Options

AA duplexed backup set uses the same number of SBT channels as a non-duplexed backup set for
BA non-duplexed backup set written to disk can be duplexed to disk by backing up the backup set
CA non-duplexed backup set written to SBT can be duplexed to tape by backing up the backup set
DA non-duplexed backup set written to disk can be duplexed to tape by backing up the backup set
EA non-duplexed backup set written to SBT can be duplexed to disk by backing up the backup set
FA duplexed backup set always uses twice as many SBT channels as a non-duplexed backup set

How the community answered

(28 responses)

A
4% (1)
B
82% (23)
E
4% (1)
F
11% (3)

Explanation

https://docs.oracle.com/cd/E18283_01/backup.112/e10642/rcmbckad.htm#i1006180 "You cannot back up from tape to tape or from tape to disk: only from disk to disk or disk to tape." https://docs.oracle.com/en/database/oracle/oracle-database/19/rcmrf/BACKUP.html#GUID- 73642FF2-43C5-48B2-9969-99001C52EB50

Topics

#duplexed backup sets#RMAN backup#SBT channels#backup copies

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