單項(xiàng)選擇題

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 operation
C. It mounts disks in the disk group for which the drop-disk operation has already been completed
D. It restores all the dropped disks in the disk group for which the drop-disk operation has already been completed
E. It adds previously dropped disks back into the disk group

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多項(xiàng)選擇題

Which tasks are run automatically as part of the Automated Maintenance Task by default？（）

A. Segment Advisor
B. SQL Access Advisor
C. Optimizer statistics gathering
D. Automatic SQL Tuning Advisor
E. Automatic Database Diagnostics Monitor

單項(xiàng)選擇題

You are using Recovery Manager (RMAN) with a recovery catalog to back up your production database. Thebackups and the archived redo log files are copied to a tape drive on a daily basis.
Because of media failure,you lost your production database completely along with the recovery catalog database.You want to recover the target database and make it functional. You consider performing the following steps to accomplish the task:
1) Restore an autobackup of the server parameter file.
2) Restore the control file
3) Start the target database instance
4) Mount the database
5) Restore the data files
6) Open the database with RESETLOGS option
7) Recover the data files
8) Set DBID for the target database
Which option illustrates the correct sequence that you must use?（）

A.8，1，3，2，4，5，7，6
B.1，8，3，4，2，5，7，6
C.1，3，4，2，8，5，6，7
D.1，3，2，4，6，5，7，8

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Examine the following ALTER command: SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS; What is the purpose of the command?（）

你可能感興趣的試題

Which tasks are run automatically as part of the Automated Maintenance Task by default？（）

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Examine the following ALTER command:
SQL> ALTER DISKGROUP dgroup1 UNDROP DISKS;
What is the purpose of the command?（）