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单选题
You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure.  How would you proceed to recover the database?()
A

Start the instance and open the database, instance recovery automatically recovers control files 

B

Create a file based on the contents of the trace file and save it to the control file locations and start the database 

C

Re-create the database (The recovery of the control file is not possible because you have lost all the control files.) 

D

Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file. 

E

Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.


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考题 单选题You work as a database administrator for Supportcenter.cn. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure. How would you proceed to recover the database?()A Start the instance and open the database, instance recovery automatically recoverscontrol filesB Create a file based on the contents of the trace file and save it to the control file locations and start the databaseC Re-create the database (The recovery of the control file is not possible because you have lost all the control files.)D Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file.E Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

考题 单选题You work as a database administrator for Certkiller .com. You added atablespaceto your database. Because of the changes to the physical structure of your database, you performed a backup of the control file to trace. After this, you lost only the control files and the instance aborted due to a hardware failure.  How would you proceed to recover the database?()A Start the instance and open the database, instance recovery automatically recovers control files B Create a file based on the contents of the trace file and save it to the control file locations and start the database C Re-create the database (The recovery of the control file is not possible because you have lost all the control files.) D Start the instance, in the NOMOUNTstate,re-create the control file using the CREATE CONTROLFILE command stored in the trace file. E Start the instance and MOUNT the database, then re-create the control file using the CREATE CONTROLFILE command stored in the trace file.

考题 单选题You executed the STARTUP MOUNT command to start your database. For which database operation do you need to start the database in the MOUNT state?()A renaming the control filesB dropping a user in your databaseC enabling or disabling redo log archivingD dropping a tablespace in your databaseE re-creating the control files, after you lost all the control files in your database

考题 单选题Your database runs in NOARCHIVELOG mode, and is backed up every night using RMAN scripts. However, last night your assistant DBA performed a manual operating system backup, instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo?()A You need to perform the restore and recover operations manually, because the backup was made manually. B First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database. C First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database. D You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information. 

考题 单选题You work as a database administrator for Certkiller .com. According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()A The backup is similar to image copy.B The backup contains all used data blocks.C The backup contains only unused data blocks.D The backup contains all data blocks changed since the last incremental level 1 backup.

考题 单选题You have lost all your database control files. To recover them, you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact.  Which of the following is true regarding your recovery?()A  You will need to open the database with the resetlogs command.B  All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C  You will use the resetlogs version of the create controlfile command.D  You will use the noresetlogs version of the create controlfile command.E  You will use the trace file to create a backup control file, and then you will recover the database with the recover database using backup controlfile command

考题 单选题You work as a database administrator for Certkiller .com. You enabled tracing while creating a listener to your database.  What additional information is available to you when you enable tracing?()A Information about each Oracle Net connection.B Information about each entry in theLinstener.orafileC Information about the changed done in the databaseD Information about the different listeners in your systemE Information about all thenondatabasefiles required to operate the database