Which two statements are true about initialization para…

Which two statements are true about initialization parameters for Clustered ASM instances?

A.
A change to ASM_DISKSTRING requires a restart of all ASM instances for the change to take effect.

B.
ASM_POWER_LIMIT controls the number of RDBMS instances that can access a disk group while it is being
rebalanced.

C.
The ASM_DISKGROUP parameter is optional.

D.
The default value of INSTANT_TYPE is ASM.

E.
The maximum value of ASM_POWER_LIMIT is 1024.

Explanation:
C: The default value of the ASM_DISKGROUPS parameter is a NULL string. If the parameter value is NULL or
is not specified, then ASM does not mount any disk groups.
E: The ASM_POWER_LIMIT initialization parameter specifies the default power for disk rebalancing in a disk
group. The range of values is 0 to 1024.
Incorrect Answers:
B: The ASM_POWER_LIMIT initialization parameter specifies the default power for disk rebalancing in a disk
group. The range of values is 0 to 1024.
D: The default value of INSTANT_TYPE is RDBMS.
https://docs.oracle.com/cd/E11882_01/server.112/e18951/asminst.htm#BHCEHJGA