Which two statements are true about setting the FAST_ START_ MTTR_ TARGET initialization parameter to a nonzero value?

[answerhappygod]

Which two statements are true about setting the FAST_ START_ MTTR_ TARGET initialization parameter to a nonzero value?

A. The MTTR advisor will be disabled.
B. Automatic checkpoint tuning will be enabled.
C. The value for the LOG_CHECKPIONT_INTERVAL initialization parameter will be override the value for FAST_START_MTTR_TARGET.
D. The time taken to recover the instance after the crash is always exactly the same as the value given for the FAST_START_MTTR_TARGET initialization parameter.