Which two are true about RMAN backups when using a media manager to write backups to tape when there are only two tape drives? (Choose two.) 

Answer options:

A. SBT tape compression can be used even if no RMAN compression is configured.
B. Any backup set written to the SBT device in this configuration can contain a maximum of two backup pieces.
C. Any backup written to the SBT device in this configuration can contain a maximum of two backup sets.
D. SBT tape compression and RMAN backup compression should be used in parallel.
E. The SBT device should be configured to use PARALLELISM 2 to allow both tape drive to be used simultaneously.

DE