OCP-1Z0-053-200题-72题-649

QUESTION 72

Examine the CREATE DISKGROUP command used to create a diskgroup:

SQL> CREATE DISKGROUP misc EXTERNAL REDUNDANCY

DISK 'ORCL: FRA3' NAME misc1, 'ORCL: FRA4' NAME misc2;

In which situation would you use this method of disk group creation?

A. When two-way disk mirroring is required for the allocation units

B. When three-way disk mirroring is required for the allocation units

C. When using hardware mirroring or RAID

D. When disk mirroring is required for the Automatic Storage Management (ASM) disks

Answer: C

同649题：http://blog.csdn.net/rlhua/article/details/12998439

Explanation/Reference:

Section: Database Architecture & Resource Management, RAC, ASM