多项选择题

You are connected to Recovery Manager (RMAN) without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup,you need the database ID (DBID). 
In which two sources would you find the DBID? ()

A.the trace file
B.the alert log file
C.an RMAN session log file
D.the server parameter file
E.the formatted name of a control file autobackup


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1.多项选择题

You used the following command in Recovery Manager (RMAN) as part of the recovery process: RESTORE CONTROLFILE FROM AUTOBACKUP; 
How does RMAN find the control file autobackup?()

A.by using the trace file
B.by using the alert log file
C.by using the database ID
D.by using the server parameter file
E.by using the V$CONTROLFILE view
F.by using the autobackup format configuration setting

2.多项选择题

In your database, all the tablespaces are locally managed. You started Recovery Manager (RMAN) using recovery catalog and restored the control file by using the following command: RMAN> RESTORE CONTROLFILE; 
Which two operations do you need to perform after restoring the control file from backup?()

A.shut down and restart the instance
B.add new tempfiles to the temporary tablespaces after recovery
C.perform a media recovery and open the database with the RESETLOGS option
D.perform a media recovery and bring the database to NOARCHIVELOG mode

4.单项选择题

The loss of the control file forced you to re­create the control file. After re­creating it and opening the database, you find that some of the data files are named as MISSINGnnnnn, where nnnnn is a five­digit number starting with 0. 
What could be the possible reason?()

A.These are the data files that are corrupted.
B.There is no SYSAUX tablespace in your database
C.There is a read­only tablespace in your database.
D.These are the data files that cannot be recovered.

5.单项选择题You have a read­only tablespace on read­only media. You want to perform a media recovery on the existing data files, but using a backup control file. The backup control file indicates that the status of the read­only tablespace was read/write when the control file was backed up. What should you consider?()

A.drop the read­only tablespace and re­create the tablespace after recovery
B.take data files from the read­only tablespace offline before performing a recovery
C.perform a recovery; status of the tablespace in control file will be changed automatically
D.recovery using backup control file is not possible, so restore all the files from the last full database backup, and then open the database

6.单项选择题

One of the tablespaces is read­only in your database. The loss of all control files forced you to re­create the control file. 
Which operation do you need to perform after re­creating the control file and opening the database?()

A.drop and re­create the read­only tablespaces
B.rename the read­only data files to their correct file names
C.change the tablespace status from read/write to read­only
D.re­create the read­only tablespace because it is automatically removed

7.单项选择题You lost the PRODSTD tablespace, which was read/write. The tablespace was read­only when the last backup was performed. How would you recover the tablespace?()

A.restore the tablespace from the backup; there is no need to apply the redo information 
B.restore the full database to recover the data up to the point when you performed the backup 
C.restore the tablespace from the backup, and then perform a recovery using the backup control file
D.restore the tablespace from the backup, and then recover the tablespace; all the redo information from the point when the tablespace was made read/write is applied

10.单项选择题You lost the index tablespace in your database. You are not able to use tablespace point­in­time recovery on the index tablespace. What could be the reason for this?()

A.The index tablespace contains bitmap indexes.
B.The index tablespace contains more than one data file.
C.The index tablespace supports only complete recovery.
D.The index tablespace is not a dictionary­managed tablespace.
E.There is a dependency relationship between a table and its indexes.

最新试题

You configured the flash recovery area in the database. Which two files would you expect to find in the flash recovery area? ()

题型:多项选择题

Your database operates in ARCHIVELOG mode and user­managed consistent backups are performed every Sunday night. On Tuesday, at 9:00 a.m. the current log sequence number was 369. Also, on Tuesday you lost the data file belonging to the SYSTEM tablespace and an archivelog file (sequence number 356) that contained redo entries between 8:00 a.m. and 8:30 a.m. With reference to this scenario, what would you do to recover the database?()

题型:单项选择题

View the Exhibit. One of the important tables in the USERS tablespace was dropped and purged from the recycle bin at 9:00 a.m. You noticed this at 11:00 a.m. and you want to perform an incomplete recovery to recover the table. Which statement is true?()

题型:单项选择题

Your database operates in ARCHIVELOG mode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence, 230, is not archived, and it contained information from 10:35 a.m. onwards. The current time is 11:00 a.m. Because of a disk crash, you executed the following command to perform an incomplete recovery: RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1; 3> ALTER DATABASE MOUNT; 4> RESTORE DATABASE; 5> RECOVER DATABASE; 6> ALTER DATABASE OPEN RESETLOGS;7> }; With reference to this scenario, which statement is true?()

题型:单项选择题

On Tuesday, a junior DBA dropped an important application user account, whose schema has important tables. You are asked to recover all the objects in the schema. On investigation, you find that the user account was dropped at 11:00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use?()

题型:单项选择题

You performed a backup of the flash recovery area by using the following command for the first time:RMAN> BACKUP RECOVERY AREA; Which files in the flash recovery area are backed up?()

题型:多项选择题

You disabled the Flashback Database feature by using the following command: SQL> ALTER DATABASE FLASHBACK OFF; What would be the effect of this command on the existing flashback logs?()

题型:单项选择题

The current time is 12:00 noon. You want to recover the USERS tablespace from a failure that occurred at 11:50 a.m. You discover that the only member of an unarchived redo log group containing information from 11:40 a.m. onwards is corrupt. With reference to this scenario, if you are not using Recovery Manager (RMAN), which recovery method would you use?()

题型:单项选择题

You lost the PRODSTD tablespace, which was read/write. The tablespace was read­only when the last backup was performed. How would you recover the tablespace?()

题型:单项选择题

You enabled the flashback logging feature, but you have not specified the location of the flash recovery area. Which location would be used as the default location for the flash recovery area?()

题型:单项选择题