which two statements are correct?

You are preparing the storage for Oracle ASM, which two statements are correct?

A.
You must create an ASMOWNER operating system user.

B.
You must choose a RAID stripe size that is a power of 2 and greater than the ASM allocation
unit.

C.
Oracle ASMLIB is not a prerequisite to configure ASM.

D.
You must change user and group ownership of devices to oracle:dba.

Explanation:
C:
* ASMLib is an optional support library for the Automatic Storage Management feature of the

Oracle Database.
* Automatic Storage Management (ASM) simplifies administration of Oracle related files by
allowing the administrator to reference disk groups rather than individual disks and files, which
ASM manages internally. On Linux, ASM is capable of referencing disks as raw devices or by
using the ASMLib software.
D: Setting the ownership to oracle:dba is one example that corresponds to the default settings.
Incorrect:
Not B:
* It is recomended that the hardware RAID stripe size be configured as a power of 2 and less than
or equal to the size of the ASM allocation unit.
* Choose a hardware RAID stripe size that is a power of 2 and less than or equal to the size of the
Oracle ASM allocation unit.