Which two statements are true about instance recovery in a RAC environment?
A.
Increasing the size of the default buffer cache can speed up instance recovery because
instance recovery may use as much as 50 percent of the default buffer cache for recovery
buffers.
B.
The fast_start_mttr_target initialization parameter includes both instance startup and
recovery time.
C.
The fast__start_mttr_target initialization parameter specifies only the instance recovery
time.
D.
Parallel instance recovery will work even if the recovery_parallelism initialization
parameter set to 0 or 1.
A is correct, because in the RAC environment when an instance crashing one of the other instances responsible to read the redologs of the failed instance to the buffer cache and role forward an then role back uncommitted transactions.
Correct answers are: A, C