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多选题
What methods are available to recover lost control files？（）
A
Backup control file.
B
Emergency control file.
C
The create controlfile command.
D
The restore controlfile SQL*Plus command.
E
No backup is required. The database will re-create the control file when it is discovered to be lost.
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更多 “多选题What methods are available to recover lost control files？（）ABackup control file.BEmergency control file.CThe create controlfile command.DThe restore controlfile SQL*Plus command.ENo backup is required. The database will re-create the control file when it is discovered to be lost.” 相关考题
考题
What methods are available to recover lost control files？（） A、 Backup control file.B、 Emergency control file.C、 The create controlfile command.D、 The restore controlfile SQL*Plus command.E、 No backup is required. The database will re-create the control file when it is discovered to be lost.
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You have lost datafile 4 from your database. Which is typically the fastest way to restore your database？（） A、 Restore and recover the datafile.B、 Restore and recover the tablespace.C、 Restore and recover the database.D、 Restore and recover the control file.E、 Restore and recover the parameter file.
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When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）A、Until SCNB、Until timeC、Until cancelD、Recover using backup control file.
考题
Your database is running in ARCHIVELOG mode. One of the data files,USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)?（）A、Redo logsB、Control fileC、The latest backup of only the damaged data fileD、The latest backup of all the data file in the USERS tablespaceE、Temporary files of temporary tablespaceF、Archive Logs since the latest backup to point of failure
考题
You have discovered that one of three control files has been lost. What steps would you follow to recover that control file？（） a. Shut down the database. b. Restore a control-file copy from backup media. c. Use the create control file command to create a new control file. d. Copy the backup control file into place. e. Create a new copy of the control file from one of the surviving control files. f. Recover the database using the recover database using backup control file command. g. Start up the database. A、a， b， f， gB、c， f， gC、a， d， f， gD、a， f， gE、a， e， g
考题
Your database is running In ARCIIIVELOG mode. One of the data files， USBRDATAOI. DBF， in the users tablespace is damaged and you need to recover the file until the point of failure. The backup for the data file is available. Which three files would be used in the user-managed recovery process performed by the database administrator （DBA）？（） A、 redo logsB、 control fileC、 temporary files of temporary tablespaceD、 the latest backup of only the damaged data fileE、 the latest backup of all the data files In the USERS tablespace
考题
When performing an incomplete recover of the whole database， which data files must you restore？ （）A、Only the damaged or lost data files.B、All of the data files of the database.C、Only the data files belonging to the SYSTEM tablespace.D、The data files belonging to the SYSTEM tablespace and the damaged or lost data files.
考题
Which three statements are true about the stages of database startup？（）A、Data files and redo log files can be renamed at the MOUNT stage.B、Control files are read at the OPEN stage for the location of data files.C、Control files are required to bring the database to the NOMOUNT stage.D、Data files and redo log files are made available to users at the OPEN stage.E、Data files and online redo log files are checked for consistency while opening the database
考题
Your database is configured in NOARCHIVELOG mode. All the control files have been lost due to a hard disk failure but the data files are not lost. You have the closed whole database backup available to you. Which two statements are true in this scenario？（）A、The instance aborts.B、The database cannot be recovered.C、The database can be recovered by restoring the control files from the backup.D、The database remains opened and you have to shut it down with the ABORT option.E、The database can be restored till the point of the last closed whole database backup.
考题
In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure. How would you recover the lost redo log member？（）A、import the database from the last exportB、restore all the members in the group from the last backupC、drop the lost member from the database， and then add a new member to the groupD、restore all the database files from the backup， and then perform a complete recovery E、restore all the database files from the backup， and then perform an incomplete recovery
考题
If you find errors in the view V$DATABASE_BLOCK_CORRUPTION with a status of MEDIA_CORRUPT， what RMAN command would you run to correct the problem？（）A、 recover lost blocksB、 recover corrupt blocksC、 recover media corrupt blocks from listD、 recover corrupt blocks from listE、 recover corruption list
考题
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 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Assume your situation can be described as follows： x A full backup taken using RMAN is available on disk. x The current control files were NOT damaged and do not need to be restored. x All data files are damaged or lost. x The database is in NOARCHIVELOG mode. Which RMAN command would be most appropriate to use in line 3 of the following RMAN command set to restore and fully recover your database？（） 1. RMAN STARTUP MOUNT 2. RMAN RESTORE DATABASE; 3. RMAN （） 4. RMAN ALTER DATABASE OPEN;A
RECOVER DATABASE；B
SWITCH DATAFILE ALL；C
RESTORE CONTROL FILE；D
RECOVER DATABASE USING BACKUP CONTROL FILE；
考题
单选题When performing an incomplete recover of the whole database， which data files must you restore？ （）A
Only the damaged or lost data files.B
All of the data files of the database.C
Only the data files belonging to the SYSTEM tablespace.D
The data files belonging to the SYSTEM tablespace and the damaged or lost data files.
考题
单选题You have lost datafile 4 from your database. Which is typically the fastest way to restore your database？（）A
Restore and recover the datafile.B
Restore and recover the tablespace.C
Restore and recover the database.D
Restore and recover the control file.E
Restore and recover the parameter file.
考题
单选题You have lost datafile 4 from your database. Which is typically the fastest way to restore your database? （）A
Restore and recover the datafile. B
Restore and recover the tablespace. C
Restore and recover the database. D
Restore and recover the control file. E
Restore and recover the parameter file.
考题
单选题You are operating your database in NOARCHIVELOG mode. Your most recent backup includes a copy of all of the data files and the control files taken when the current log sequence number was 45. You experience disk failure on the drive on which your SYSTEM tablespace data files are stored. At the time of the failure， the current log sequence number is 98. Which files should you restore to recover from the loss of the SYSTEM tablespace data files？（）A
Only the data files.B
All of the data files and the control files.C
Only the data files belonging to the SYSTEM tablespace.D
Only the data files belonging to the SYSTEM tablespace and the control files.
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The database is being restored from a closed backup. The data files， control files， password file， and parameter file are available， but the online redo logs are not. Because the online redo logs are not available， you must simulate recovery and alter the database open with the reset logs option so the online redo logs are created while the database opens. Which type of recover is used in this situation？（）A
until SCNB
until timeC
until cancelD
using backup control file
考题
单选题In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）A
import the database from the last exportB
restore all the members in the group from the last backupC
drop the lost member from the database and then add a new member to the groupD
restore all the database files from the backup and then perform a complete recoveryE
restore all the database files from the backup and then perform an incomplete recovery
考题
单选题If you find errors in the view V$DATABASE_BLOCK_CORRUPTION with a status of MEDIA_CORRUPT， what RMAN command would you run to correct the problem？（）A
recover lost blocksB
recover corrupt blocksC
recover media corrupt blocks from listD
recover corrupt blocks from listE
recover corruption list
考题
多选题What methods are available to recover lost control files？（）ABackup control file.BEmergency control file.CThe create controlfile command.DThe restore controlfile SQL*Plus command.ENo backup is required. The database will re-create the control file when it is discovered to be lost.
考题
多选题Your database is configured in NOARCHIVELOG mode. All the control files have been lost due to a hard disk failure but the data files are not lost. You have the closed whole database backup available to you. Which two statements are true in this scenario？（）AThe instance aborts.BThe database cannot be recovered.CThe database can be recovered by restoring the control files from the backup.DThe database remains opened and you have to shut it down with the ABORT option.EThe database can be restored till the point of the last closed whole database backup.
考题
单选题When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）A
Until SCNB
Until timeC
Until cancelD
Recover using backup control file.
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