Which two are prerequisites for running the I/O calibration tool?(Choose two.)
A.
The database must be inMOUNTstate.
B.
The database should be opened in restricted mode.
C.
For determining latency time, theSTATISTICS_LEVELparameter must be set
toTYPICALorALL.
D.
The disks to be tested must be configured to use asynchronous I/O for data files.
E.
The database instance must be started using anSPFILE.
C and D
C,D