多选题Identify the channel settings that can be performed using the CONFIGURE CHANNEL or ALLOCATECHANNEL commands in RMAN（） (choose all that apply)ALimiting the input/output (I/O) bandwidth consumptionBSpecifying the size of backup sets and backup piecesCSpecifying vendor-specific information for a media managerDSpecifying the parallelism for backup and restore operations
多选题
Identify the channel settings that can be performed using the CONFIGURE CHANNEL or ALLOCATECHANNEL commands in RMAN（） (choose all that apply)
A
Limiting the input/output (I/O) bandwidth consumption
B
Specifying the size of backup sets and backup pieces
C
Specifying vendor-specific information for a media manager
D
Specifying the parallelism for backup and restore operations
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