单选题If you use ALTER DISKGROUP ... ADD DISK and specify a wildcard for the discovery string， what happens to disks that are already a part of the same or another disk group？（）AThe command fails unless you specify the FORCE option.BThe command fails unless 

第1题：

第2题：

Which of the following ALTER DISKGROUP commands does not use V$ASM_OPERATION to record thestatus of the operation?（）

• A、ADD DIRECTORY
• B、DROP DISK
• C、RESIZE DISK
• D、REBALANCE
• E、ADD FAILGROUP

第3题：

第4题：

You have the following online redo log configuration：    Group       Member   1     ’/disk1/oradata/redo01a.log’   2     ’/disk2/oradata/redo02a.log’   3     ’/disk3/oradata/redo03a.log’   You decide to multiplex the online redo log groups for recovery of redo log files in case of any disaster. Which two statements will you NOT issue to multiplex the online redo log files？（）

• A、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo01b.log’ TO GROUP 1；
• B、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo01b.log’ TO GROUP 1；
• C、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo02b.log’ TO GROUP 2；
• D、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo02b.log’ TO GROUP 2；
• E、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo3b.log’ TO GROUP 3；
• F、 ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo3b.log’ TO GROUP3；

第5题：

If you use ALTER DISKGROUP ... ADD DISK and specify a wildcard for the discovery string， what happens to disks that are already a part of the same or another disk group？（）  

• A、 The command fails unless you specify the FORCE option.
• B、 The command fails unless you specify the REUSE option.
• C、 The command must be reissued with a more specific discovery string.
• D、 The other disks， already part of the disk group，are ignored.

第6题：

Which two commands never trigger an implicit rebalancing within the disk group?（） (Choose two.)

• A、ALTER DISKGROUP misc MOUNT;
• B、ALTER DISKGROUP misc DROP DISK misc2;
• C、ALTER DISKGROUP misc CHECK ALL NOREPAIR;
• D、ALTER DISKGROUP misc RESIZE ALL SIZE 1023m;
• E、ALTER DISKGROUP dgroupA ADD DISK '/devices/A*';

第7题：

Consider the following configuration：   /devices/diskP1 is a member of disk group grp1.        /devices/diskP2 is a member of disk group grp1.        /devices/diskP3 is a member of disk group grp1.        /devices/diskP4 is a candidate disk.        /devices/diskQ1 is a member of disk group grp2.        /devices/diskQ2 is a member of disk group grp2.        /devices/diskQ3 is a member of disk group grp2.        /devices/diskQ4 is a candidate disk.   Which command will add the disk /devices/diskP4 to the disk group， grp1？（）  

• A、 ALTER DISKGROUP grp1  ADD DISK ’/devices/diskP1’，  ADD DISK ’/devices/diskP4’；
• B、 ALTER DISKGROUP grp1  ADD DISK ’/devices/disk*4’；
• C、 ALTER DISKGROUP grp1  ADD DISK ’/devices/diskP*’；
• D、 ALTER DISKGROUP grp1  ADD DISK ’/devices/diskQ*’，  ADD DISK ’/devices/diskP*’；

第8题：

第9题：

Which two commands never trigger an implicit rebalancing within the disk group?（）

• A、ALTER DISKGROUP misc MOUNT;
• B、ALTER DISKGROUP misc DROP DISK misc2;
• C、ALTER DISKGROUP misc CHECK ALL NOREPAIR;
• D、ALTER DISKGROUP misc RESIZE ALL SIZE 1023m;
• E、 ALTER DISKGROUP dgroupA ADD DISK '/devices/A*';

第10题：

You want to perform the following operations for the DATA ASM disk group： -Verify the consistency of the disk.  -Cross-check all the file extent maps and allocation tables for consistency. check whether the alias metadata directory and file directory are linked correctly.  -Check that ASM metadata directories do not have unreachable allocated blocks.   Which command accomplishes these tasks（）？

• A、 ALTER DISKGROUP data CHECK
• B、 ALTER DISKGROUP data CHECK DISK
• C、 ALTER DISKGROUP data CHECK FILE
• D、 ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1