为自己加油

Which two are true about Recovery Manager (RMAN) diagnostic

Message output? (Choose two.)

A.
Media Management messages for SBT devices are always written to sbtio.log.
B.
RMAN error stacks should be read from the bottom up as that is the order in
Which errors are generated.
C.
RMAN error stacks should be read from the top down as that is the order in
Which errors are generated.
D.
The RMAN LOG command line clause causes output issued during RMAN
Command
Compilation to be written to a log file and to standard output.
E.
The RMAN LOG command line clause causes output issued during RMAN
Command compilation to be written to a log file only.
F.
Media Management messages for
SBT devices are written to an Oracle trace file.