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单选题
You are managing a database for which incremental backups can be very time consuming. In order to perform optimized incremental backups you enable the block change tracking feature.How would you instruct RMAN to use the block change tracking feature when performing incremental backups？（）
A
You need to mention it with every BACKUP command.
B
The block change tracking feature is used automatically by RMAN.
C
You need to configure it using the CONFIGURE command.
D
You need to set the necessary initialization parameters to direct RMAN to use the feature.
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更多 “单选题You are managing a database for which incremental backups can be very time consuming. In order to perform optimized incremental backups you enable the block change tracking feature.How would you instruct RMAN to use the block change tracking feature when performing incremental backups？（）A You need to mention it with every BACKUP command.B The block change tracking feature is used automatically by RMAN.C You need to configure it using the CONFIGURE command.D You need to set the necessary initialization parameters to direct RMAN to use the feature.” 相关考题
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You are managing a 24*7 database. The backup strategy for the database is to perform user－managed backups. Identify two prerequisites to perform the backups.()
A. The database must be opened in restricted mode.B. The database must be configured to run in ARCHIVELOG mode.C. The tablespaces are required to be in backup mode before taking the backup.D. The tablespaces are required to be in read-only mode before taking the backup
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You enabled block change tracking for faster incremental backups in your database. Which background process writes to the change tracking file？（）A、 RBALB、 CKPTC、 SMOND、 PMONE、 MMONF、 CTWRG、 DBWR
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Which command would you use to determine what database backups are currently available for restore?（）A、list database backupB、report database backup C、list backup of databaseD、list summary backupE、report backup of database
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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 are managing an Oracle Database 11g database. You configured the database to run in ARCHIVELOGmode. Which two statements are true in this scenario（）A、You must shut down the database instance to perform the backups.B、You must configure the Flash Recovery Area （FRA） for the database.C、You can perform complete database backups without closing the database.D、All the previous closed database backups including control files become invalid after you configure thedatabase to ARCHIVELOG mode.
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Your test database is running in NOARCHIVELOG mode. Which statement is true regarding the type ofbackups that can be performed on the database（）A、You can perform online whole database backups.B、You can performofflinewhole database backups.C、You cannot perform schema-level export/import operations.D、You can perform the backup of only the SYSTEM tablespace when the database is open.
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You are managing an Oracle Database 11g database with this backup strategy： - Every Sunday night， level 0 backup is performed. - On Monday night and subsequent days， level 1 incremental backup is performed. The backups are not cumulative incremental. Which statement about Monday’s backup is true（）A、The backup contains all the used blocks.B、The backup contains all the used and unused blocks.C、The backup contains blocks that have changed since the last level 0 backup.D、The backup contains blocks that have changed since the last level 1 backup taken last week.
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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（）A、The backups would be consistent.B、The backups would be inconsistent.C、The backups would be possible only if the database is running in ARCHIVELOG mode.D、The backups would be possible only if the database is running in NOARCHIVELOG mode.E、The backups need to be restored and the database has to be recovered in case of a media failure
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You are managing an Oracle Database 11g database with the following backup strategy：1） On Sunday， an incremental level 0 tape backup is performed.2） Monday through Saturday， a cumulative incremental level 1 tape backup is performed. Which twostatements are true regarding the backups performed（）A、The backup performed in step 1 backs up all blocks that have ever been in use in the database.B、The backup performed in step 2 copies all the blocks changed since the most recent level 0 backup.C、The backup performed in step 1 backs up all the blocks changed since the most recent level 1 backup.D、The backup performed in step 2 backs up all blocks that have changed since the most recent incrementalbackup at level 1
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You have three databases， FINDB， PAYDB and ADMINDB， located in Sydney， Tokyo and Singapore respectively. You want to perform administrative tasks which include starting up and shutting down the databases， creating and managing tablespaces and database users， and taking regular backups， for all of the three databases from London. Which component must be enabled and running on each host machine to achieve your objective？（）A、Oracle Management AgentB、Enterprise Manager with Grid ControlC、Enterprise Manager with Database ControlD、Operating System Socket for incoming requestsE、Real Application Cluster （RAC） with three instancesF、Enterprise Manager with Generic Database Management
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Which command would you use to determine what database backups are currently available for restore？（） A、 list database backupB、 report database backupC、 list backup of databaseD、 list summary backupE、 report backup of database
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You are maintaining your database in Oracle10g. While performing an incremental backup of the database， you want to back uponly those blocks that have changed since the last backup. Which file will you create to increase the performance of the backup operation while performing the incremental backup of the database？（）A、 redo log filesB、 password fileC、 control fileD、 change tracking file
考题
To enable faster incremental backups， you enabled block change tracking for the database. Which two statements are true about the block change tracking file？（） A、 Multiple change tracking files can be created for a database.B、 The change tracking file must be created after the first level 0 backup.C、 RMAN does not support backup and recovery of the change tracking file.D、 The database clears the change tracking file and starts tracking changes again，after whole database restore and recovery operations.
考题
You are managing a database for which incremental backups can be very time consuming. In order to perform optimized incremental backups you enable the block change tracking feature.How would you instruct RMAN to use the block change tracking feature when performing incremental backups？（）A、 You need to mention it with every BACKUP command.B、 The block change tracking feature is used automatically by RMAN.C、 You need to configure it using the CONFIGURE command.D、 You need to set the necessary initialization parameters to direct RMAN to use the feature.
考题
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 Enterprise Edition instance. There is a database named DB1 in the instance. A backup of DB1 is performed every day. You have to minimize the size of the full database backup files of DB1. In the options below, which Transact-SQL statement should you use? （） A、BACKUP DATABASE DB1 TO DISK = apos;t:/backups/db1.bakapos;; B、BACKUP DATABASE DB1 TO DISK = apos;t:/backups/db1.bakapos; WITH COMPRESSION; C、BACKUP DATABASE DB1 TO DISK = apos;t:/backups/db1.bakapos; WITH DIFFERENTIAL; D、BACKUP DATABASE DB1 TO DISK = apos;t:/backups/db1.bakapos; WITH COMPRESSION,DIFFERENTIAL;
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多选题You are managing a 24*7 database. The backup strategy for the database is to perform user-managed backups. Identify two prerequisites to perform the backups.（）AThe database must be opened in restricted mode.BThe database must be configured to run in ARCHIVELOG mode.CThe tablespaces are required to be in backup mode before taking the backup.DThe tablespaces are required to be in read-only mode before taking the backup
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单选题You have three databases， FINDB， PAYDB and ADMINDB， located in Sydney， Tokyo and Singapore respectively. You want to perform administrative tasks which include starting up and shutting down the databases， creating and managing tablespaces and database users， and taking regular backups， for all of the three databases from London. Which component must be enabled and running on each host machine to achieve your objective？（）A
Oracle Management AgentB
Enterprise Manager with Grid ControlC
Enterprise Manager with Database ControlD
Operating System Socket for incoming requestsE
Real Application Cluster （RAC） with three instancesF
Enterprise Manager with Generic Database Management
考题
多选题You are managing an Oracle Database 11g database. You configured the database to run in ARCHIVELOGmode. Which two statements are true in this scenario（）AYou must shut down the database instance to perform the backups.BYou must configure the Flash Recovery Area （FRA） for the database.CYou can perform complete database backups without closing the database.DAll the previous closed database backups including control files become invalid after you configure thedatabase to ARCHIVELOG mode.
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多选题You are managing an Oracle Database 11g database. The database is open， and you plan to performRecovery 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.
考题
多选题You performed an incremental level 0 backup of a database: RMAN BACKUP INCREMENTAL LEVEL 0 DATABASE; To enable block change tracking after the incremental level 0 backup, you issued this command: SQL ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’; To perform an incremental level 1 cumulative backup, you issued this command: RMAN BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which three statements are true?（）ABackup change tracking will sometimes reduce I/O performed during cumulative incremental backups.BThe change tracking file must always be backed up when you perform a full database backup.CBlock change tracking will always reduce I/O performed during cumulative incremental backups.DMore than one database block may be read by an incremental backup for a change made to a single block.EThe incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.
考题
单选题You are maintaining your database in Oracle10g. While performing an incremental backup of the database， you want to back uponly those blocks that have changed since the last backup. Which file will you create to increase the performance of the backup operation while performing the incremental backup of the database？（）A
redo log filesB
password fileC
control fileD
change tracking file
考题
单选题You are managing an Oracle Database 11g database with this backup strategy： - Every Sunday night， level 0 backup is performed. - On Monday night and subsequent days， level 1 incremental backup is performed. The backups are not cumulative incremental. Which statement about Monday’s backup is true（）A
The backup contains all the used blocks.B
The backup contains all the used and unused blocks.C
The backup contains blocks that have changed since the last level 0 backup.D
The backup contains blocks that have changed since the last level 1 backup taken last week.
考题
多选题You are managing an Oracle Database 11g database with the following backup strategy：1） On Sunday， an incremental level 0 tape backup is performed.2） Monday through Saturday， a cumulative incremental level 1 tape backup is performed. Which twostatements are true regarding the backups performed（）AThe backup performed in step 1 backs up all blocks that have ever been in use in the database.BThe backup performed in step 2 copies all the blocks changed since the most recent level 0 backup.CThe backup performed in step 1 backs up all the blocks changed since the most recent level 1 backup.DThe backup performed in step 2 backs up all blocks that have changed since the most recent incrementalbackup at level 1
考题
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
考题
单选题You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE; The next day, you issue the following command: BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which statement about the use of the change tracking file is true?（）A
RMAN reads the block change tracking file only when it performs the incremental level 0 backup.B
RMAN reads the block change tracking file when it performs both incremental backups.C
RMAN reads the block change tracking file only when it performs the incremental level 1 backup.D
RMAN does not read the block change tracking file when it performs either incremental backup.
考题
单选题You enabled block change tracking for faster incremental backups in your database. Which background process writes to the change tracking file？（）A
RBALB
CKPTC
SMOND
PMONE
MMONF
CTWRG
DBWR
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