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


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2.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.

3.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

4.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

5.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

8.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.

9.单项选择题

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 export
B.restore all the members in the group from the last backup
C.drop the lost member from the database, and then add a new member to the group
D.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

10.单项选择题

A user executes a query on the EMP table, which contains thousands of rows, to get details about employees in one of the departments. The user receives the following error: SQL> SELECT ename FROM emp WHERE deptno=10 ORDER BY sal; SELECT ename FROM emp WHERE deptno=10 ORDER BY sal 
* 
ERROR at line 1: 
ORA­01157: cannot identify/lock data file 201 ­ see DBWR trace file 
ORA­01110: data file 201: ’/u01/app/oracle/oradata/orcl/temp01.dbf’ 
What is a possible reason?()

A.The tempfile belonging to the default temporary tablespace is missing.
B.The database is opened in restricted mode, so queries are not allowed.
C.The default temporary tablespace required to execute the query is offline.
D.The default temporary tablespace required to execute the query is dropped.
E.The default temporary tablespace required to execute the query is read­only.

最新试题

You are working on Oracle Database 10g, which is in ARCHIVELOG mode. All the archived log files are intact. In which scenario would performing a recovery require the opening of the database with the RESETLOGS option?()

题型:单项选择题

A data file became corrupted in your database due to bad sectors on the disk. Because of corruption, you lost all the important tables in that data file.Which method would you use for recovery?()

题型:单项选择题

You decided to change the location of the flash recovery area. You executed the following command: Which statement is true?()

题型:单项选择题

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? ()

题型:多项选择题

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

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

You have only two redo log groups and these groups get overwritten several times in a day. Your database operates in NOARCHIVELOG mode and user­managed consistent backups are performed every Sunday night. On Thursday morning, you find that an important table has been dropped and purged. With reference to this scenario, up to what point in time can the data be recovered?()

题型:单项选择题

You performed an incomplete recovery on your Oracle Database 10g database using the following command: SQL> RECOVER DATABASE 2 UNTIL TIME ’2004­08­05:12:10:03’ 3 USING BACKUP CONTROLFILE; In which situation would the above recovery be required?()

题型:单项选择题

You are using Oracle Database 10g. The LOG_ARCHIVE_FORMAT parameter is set to ’LOG%t_%s_%r.dbf’. Why is %r used in the file name format?() 

题型:单项选择题

Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel­based recovery?()

题型:多项选择题