单选题You have a disk group, DGROUP1, with three disks and NORMAL redundancy. You execute the following command to create a template for the disk group:  ALTER DISKGROUP dgroup1  ADD TEMPLATE my_temp  ATTRIBUTES (MIRROR FINE);  Which statement is true?()AWhen a file is created in DGROUP1 with the template, it would have three­way mirroring. BWhen a file is created in DGROUP1, the MY_TEMP template becomes the default template.CWhen a file is created in DGROUP1 with the template, it would have two­way mirroring and file striping.DWhen a file is created in DGROUP1 with the template, it would have three­way mirroring and file striping.EWhen a file is created in DGROUP1 with the template, it would have two­way mirroring but no file striping.

单选题
You have a disk group, DGROUP1, with three disks and NORMAL redundancy. You execute the following command to create a template for the disk group:  ALTER DISKGROUP dgroup1  ADD TEMPLATE my_temp  ATTRIBUTES (MIRROR FINE);  Which statement is true?()
A

When a file is created in DGROUP1 with the template, it would have three­way mirroring. 

B

When a file is created in DGROUP1, the MY_TEMP template becomes the default template.

C

When a file is created in DGROUP1 with the template, it would have two­way mirroring and file striping.

D

When a file is created in DGROUP1 with the template, it would have three­way mirroring and file striping.

E

When a file is created in DGROUP1 with the template, it would have two­way mirroring but no file striping.


参考解析

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单选题Examine the following ALTER command: SQL ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?()AIt cancels all pending disk drops within the disk groupBIt restores disks that are being dropped as the result of a DROP DISKGROUP operationCIt mounts disks in the disk group for which the drop-disk operation has already been completedDIt restores all the dropped disks in the disk group for which the drop-disk operation has already been completedEIt adds previously dropped disks back into the disk group

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单选题You are managing Oracle Database 11g with an ASM storage with high redundancy. The following command was issued to drop the disks from the dga disk group after five hours:   ALTER DISKGROUP dga OFFLINE DISKS IN FAILGROUP f2 DROP AFTER 5H;   Which statement is true in this scenario?()A It starts the ASM fast mirror resync.B All the disks in the dga disk group would be OFFLINE and the DISK_REPAIR_TIME disk attribute would be set to 5 hours.C It drops all disk paths from the dga disk group.D All the disks in the dga disk group in failure group f2 would be OFFLINE and the DISK_REPAIR_TIME disk attribute would be set to 5 hours.

单选题You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours: ALTER DISKGROUP dg01 SET ATTRIBUTE 'disk_repair_time' = '5h'; To which disks in the disk group will the new value be applicable?()Aall disks in the disk groupBall disks that are currently in OFFLINE modeCall disks that are not currently in OFFLINE modeDall disks in the disk group only if all of them are ONLINE

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单选题Examine the following command:   ALTER DISKGROUP data MOUNT FORCE;   In which scenario can you use the above command to mount the disk group?()A when ASM disk goes offlineB when one or more ASM files are droppedC when some disks in a disk group are offlineD when some disks in a failure group for a disk group are rebalancing

单选题Examine the following command: ALTER DISKGROUP data MOUNT FORCE; In which scenario can you use the above command to mount the disk group? ()Awhen ASM disk goes offlineBwhen one or more ASM files are droppedCwhen some disks in a disk group are offlineDwhen some disks in a failure group for a disk group are rebalancing

单选题What is the net effect of the following command?()   alter diskgroup dgroup1 drop disk abc;A The disk ABC will be dropped from the disk group. Since you did not issue a rebalance command,the data on that disk will be lost.B The command will raise an error indicating that you need to rebalance the disk group to remove the data from that disk prior to dropping the disk.C The disk group will be automatically rebalanced during the drop operation. Once the rebalancing is complete,the disk will be dropped.D This command will fail because you cannot drop a specific disk in an ASM disk group.E The disk drop command will be suspended for a predetermined amount of time,waiting for you to also issue an alter diskgroup rebalance command. Once you have issued the rebalance command,ASM will proceed to rebalance the disk group and then drop the disk.

单选题Examine the following ALTER command:   SQL ALTER DISKGROUP dgroup1 UNDROP DISKS;   What is the purpose of the command?()A It cancels all pending disk drops within the disk group.B It restores disks that are being dropped as the result of a DROP DISKGROUP operationC It mounts disks in the disk group for which the drop-disk operation has already been co pletedD It restores all the dropped disks in the disk group for which the drop-disk operation has already been completedE It adds previously dropped disks back into the disk group

单选题You are the Database Administrator for WonderWeb, which has recently acquired a media company TXGlobal. You have been assigned the task to migrate all the database applications of TXGlobal to the database server of WonderWeb. To accommodate more database applications, you need to add disks to the existing disk group. Whenever you add or remove disks from the disk group, Automatic Storage Management (ASM) rebalancing distributes the data evenly across all the disks of the disk group. Which background process performs this actual rebalancing activity, resulting in the movement of data extents in the disk groups?()A ASMBB ARBnC RBAL in the ASM instanceD RBAL in the database instance