9.12. Answers to Review Questions

  1. C. ASM disks are partitioned in allocation units of one megabyte each.

  2. A. Similar to an RDBMS instance, you can use ALTER SYSTEM ENABLE RESTRICTED SESSION to prevent connections to the instance. While SHUTDOWN IMMEDIATE will prevent connections to the ASM instance, this is most likely overkill if all you want to do is temporarily prevent connections. Choices C and D are not valid commands and will generate an error message.

  3. B. The initialization parameter ASM_DISKGROUP, valid only in an ASM instance, specifies the disk groups to be automatically mounted when the ASM instance starts. ASM_DISKSTRING is operating system dependent and restricts the file system devices that can be used to create disk groups. ASM_DISKMOUNT ...

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