单选题After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?()AOpening the database in RESTRICTED modeBOpening the database with the RESETLOGS optionCSetting a new DBID for the newly restored databaseDRestoring the server parameter file (SPFILE) to the new host

单选题
After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?()
A

Opening the database in RESTRICTED mode

B

Opening the database with the RESETLOGS option

C

Setting a new DBID for the newly restored database

D

Restoring the server parameter file (SPFILE) to the new host


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You work as a network Exchange administrator at Company.com.The Company.com network currently consists of a single Active Directory forest containing a single domain named Company.com.The Company.com organization makes use of Microsoft Exchange Server 2010 as their messaging solution.you are responsible for managing a mailbox server named -ex01 that contains one mailbox database.A Company.com user named kara lang informs you that her mailbox contains a number of corrupted e-mail messages.you are in the process of recovering the e-mail messages of kara lang; however, other e-mail messages in the mailbox database should not be deleted.What should you do?()A、You should consider creating a database availability group (DAG). Then a backup of the mailbox database file should be restored. Thereafter the Export-Mailbox cmdlet should be run.B、You should consider creating a new Mailbox Recovery Database. Then a backup of the database file should be restored. Thereafter the Export-Mailbox cmdlet should be run.C、You should consider creating a new Mailbox Recovery Database. Then a backup of the database file should be restored. Thereafter the Restore-Mailbox cmdlet should be run.D、You should consider creating a database availability group (DAG). Then a backup of the mailbox database file should be restored. Thereafter the Restore-Mailbox cmdlet should be run.

Which two statements are true regarding the database in ARCHIVELOG mode?()A、You have to shut down the database to perform the backups.B、Archiving information is written to the data files and redo log files.C、You can perform complete database backups without closing the database.D、Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.E、All the previous database backups become invalid after you configure the database to ARCHIVELOG mode.

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You have to shut down the database instance with the ABORT option because of a hardware failure. Which statement is true about the subsequent opening of the database?()A、The database would open normally.B、The database would not open, and it would stop at mount stage.C、The database would open after automatically performing instance recovery.D、The database would not open, and you have to perform database recovery to open it.

Your database is in NOARCHIVELOG mode. After which two operations you should take the backup of control file?()A、adding a new user to the databaseB、dropping a user from the databaseC、dropping a table from the databaseD、dropping a data file from a tablespaceE、adding a new tablespace to the database

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单选题You have to shut down the database instance with the ABORT option because of a hardware failure. Which statement is true about the subsequent opening of the database?()AThe database would open normally.BThe database would not open, and it would stop at mount stage.CThe database would open after automatically performing instance recovery.DThe database would not open, and you have to perform database recovery to open it.

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单选题Why should you back up a duplicated tablespace after a TSPITR is complete?()A The tablespace cannot be duplicated or restored to any point in time after the duplication. B The tablespace cannot be duplicated or restored to the point in time before the duplication. C The entire database cannot be restored after a TSPITR, so a backup is required.D You cannot bring the tablespace online until its been backed up.E There is no requirement to do so, as RMAN will back up the tablespace after the TSPITR.

多选题You are working on an Oracle Database 10g database. Because of data loss, you decided to perform a Flashback Database operation using the following command:  SQL FLASHBACK DATABASE TO TIMESTAMP(SYSDATE 5/24);  Which two statements are true? ()ASYSDATE should not be used with TIMESTAMP.BThe database must have multiplexed redo log files.CThe database must be in the MOUNT state to execute the command.DThe database must be opened with the RESETLOGS option after the flashback operation.EThe entire database needs to be restored from the most recent backup before the flashback operation.

单选题After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?()A Opening the database in RESTRICTED modeB Opening the database with the RESETLOGS optionC Setting a new DBID for the newly restored databaseD Restoring the server parameter file (SPFILE) to the new host

单选题Your database is in ARCHIVELOG mode. On Friday evening, you perform an online database backup by using the BACKUP DATABASE command at the Recovery Manager (RMAN) prompt and close the  database. On Monday, the System Administrator informs you about the failure of two hard disks. One of the lost disks contains two datafiles, HR1.DBF and HR2.DBF, both of which belong to a read/write tablespace named HR. The disk also contains a datafile, USERS.DBF, which belongs to a read/write tablespace named USERS. You need to restore and recover the database backup that was performed on Friday evening. After mounting the database, you issue the following RMAN commands:        RMANRESTORE DATABASE;        RMANRECOVER DATABASE;   After successfully executing these RMAN commands, you issue the following statement using SQL*Plus:        SQLALTER DATABASE OPEN;   You receive the following errors when attempting to open the database:        ORA-01157: cannot identify/lock data file 10 see DBWR trace file        ORA-01110: data file 10: ’D:///USERS.DBF’   What is the cause of these errors?()A The USERS.DBF datafile is corrupted and cannot be restored by RMAN.B The USERS.DBF datafile was not backed up using the RMAN BACKUP DATABASE command.C The USERS.DBF datafile was not restored using the RMAN RESTORE DATABASE command.D The USERS.DBF datafile was not recovered using the RMAN RECOVER DATABASE command.

单选题You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement:       SQLALTER DATABASE OPEN RESETLOGS;   Which of the following options is true about using the RESETLOGS option?()A The log sequence is reset to 0.B All the online redo logs are deleted.C All the archived redo logs from a previous incarnation become useless.D The full database backup taken from a previous incarnation can be used in future.E Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.

多选题You are managing an Oracle Database 11g database. The database is open, and you plan to perform Recovery Manager (RMAN) backups.  Which three statements are true about these backups()AThe backups would be consistent.BThe backups would be inconsistent.CThe backups would be possible only if the database is running in ARCHIVELOG mode.DThe backups would be possible only if the database is running in NOARCHIVELOG mode.EThe backups need to be restored and the database has to be recovered in case of a media failure

单选题You work as a network Exchange administrator at Company.com.The Company.com network currently consists of a single Active Directory forest containing a single domain named Company.com.The Company.com organization makes use of Microsoft Exchange Server 2010 as their messaging solution.you are responsible for managing a mailbox server named -ex01 that contains one mailbox database.A Company.com user named kara lang informs you that her mailbox contains a number of corrupted e-mail messages.you are in the process of recovering the e-mail messages of kara lang; however, other e-mail messages in the mailbox database should not be deleted.What should you do?()AYou should consider creating a database availability group (DAG). Then a backup of the mailbox database file should be restored. Thereafter the Export-Mailbox cmdlet should be run.BYou should consider creating a new Mailbox Recovery Database. Then a backup of the database file should be restored. Thereafter the Export-Mailbox cmdlet should be run.CYou should consider creating a new Mailbox Recovery Database. Then a backup of the database file should be restored. Thereafter the Restore-Mailbox cmdlet should be run.DYou should consider creating a database availability group (DAG). Then a backup of the mailbox database file should be restored. Thereafter the Restore-Mailbox cmdlet should be run.

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.

多选题You are using a recovery catalog to maintain Recovery Manager (RMAN) backup information for your production database. You have registered your production database and are performing regular backups. Because of a new requirement you have added a few new tablespaces to your production database and you want them to be included in backups.  Identify two options for completing this task.()AReregistering the target database in recovery catalogBTransporting the new tablespaces to the recovery catalog databaseCSyncronizing the recovery catalog with the target database control fileDPerforming a fresh backup of the target database to include the new data files in the catalog database

单选题After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?()AOpening the database in RESTRICTED modeBOpening the database with the RESETLOGS optionCSetting a new DBID for the newly restored databaseDRestoring the server parameter file (SPFILE) to the new host