The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session?
A.
The tape I/O performed is asynchronous
B.
The tape buffer is allocated from the System Global Area (SGA)
C.
The tape buffer is allocated from the Program Global Area (PGA)
D.
Oracle I/O uses an interrupt mechanism to determine when each I/O completes
Explanation:
http://download.oracle.com/docs/cd/B10501_01/server.920/a96566/rcmtunin.htm#449408
RMAN allocates the tape buffers in the SGA or the PGA, depending on whether I/O slaves are used. If you set the initialization parameter BACKUP_TAPE_IO_SLAVES = true, then RMAN allocates tape buffers from the SGA or the large pool if the LARGE_POOL_SIZE initialization parameter is set. If you set the parameter to false, then RMAN allocates the buffers from the PGA.