多选题You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database.Which two statements are true about this backup operation?()ABackup compression should be enabledBParallelism for the channel shou

题目
多选题
You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database.Which two statements are true about this backup operation?()
A

Backup compression should be enabled

B

Parallelism for the channel should be set to 2

C

All the files must be backed up as backup sets

D

The backup may be stored either on disk or on media with media manager


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  • 第1题:

    You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?() (Choose two).

    A. The backup as copy can only be taken to disk

    B. The backup as copy can only be taken to tape

    C. Backup can be performed only when the instance is shutdown

    D. Backup will constitute all used and unused blocks in the database


    参考答案:A, D

  • 第2题:

    Which two statements regarding compressed backups in Recovery Manager (RMAN) are true?()

    • A、 Backup compression is disabled by default.
    • B、 Backup compression can be used with both backup sets and image copies.
    • C、 Backup compression cannot be enabled using the CONFIGURE command.
    • D、 Backup compression works only if the COMPATIBILITY parameter is set to 9.0.0.0 or higher.
    • E、 Backup compression applies to only backup sets.
    • F、 Backup compression applies to only image copies.

    正确答案:A,E

  • 第3题:

    You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation?()

    • A、 The backup as copy can only be taken to disk
    • B、 The backup as copy can only be taken to tape
    • C、 Backup can be performed only when the instance is shutdown
    • D、 Backup will constitute all used and unused blocks in the database

    正确答案:A,D

  • 第4题:

    You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for the RMAN. To accomplish the backup, you issued the following RMAN command:   RMAN> BACKUP SECTION SIZE 300M TABLESPACE users;   Which two statements are true regarding the execution of the above command?()

    • A、 The RMAN parallelizes the backup although the parallelism is not set for a channel.
    • B、 The backup piece size will be limited to 300 MB.
    • C、 The operation is accomplished using the default channel available.
    • D、 Three channels for the tape drive must be configured by setting the parallelism to three.

    正确答案:B,C

  • 第5题:

    You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database. Which two statements are true about this backup operation? ()(Choose two.)

    • A、Backup compression should be enabled
    • B、Parallelism for the channel should be set to 2
    • C、All the files must be backed up as backup sets
    • D、The backup may be stored either on disk or on media with media manager

    正确答案:C,D

  • 第6题:

    You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?() (Choose two).

    • A、The backup as copy can only be taken to disk
    • B、The backup as copy can only be taken to tape
    • C、Backup can be performed only when the instance is shutdown
    • D、Backup will constitute all used and unused blocks in the database

    正确答案:A,D

  • 第7题:

    According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()

    • A、The backup is similar to image copy.
    • B、The backup contains all used data blocks.
    • C、The backup contains only unused data blocks.
    • D、The backup contains all data blocks changed since the last incremental level 1 backup.

    正确答案:B

  • 第8题:

    多选题
    Which two statements regarding compressed backups in Recovery Manager (RMAN) are true?()
    A

    Backup compression is disabled by default.

    B

    Backup compression can be used with both backup sets and image copies.

    C

    Backup compression cannot be enabled using the CONFIGURE command.

    D

    Backup compression works only if the COMPATIBILITY parameter is set to 9.0.0.0 or higher.

    E

    Backup compression applies to only backup sets.

    F

    Backup compression applies to only image copies.


    正确答案: B,F
    解析: 暂无解析

  • 第9题:

    单选题
    Which statement is true about a whole consistent database backup on a database running in ARCHIVELOG mode()
    A

    The backup will consist of used data blocks only.

    B

    The database must be shut down to accomplish the backup.

    C

    The backup can be accomplished without shutting down the database.

    D

    The backup will contain all database files that have never been backed up.


    正确答案: B
    解析: 暂无解析

  • 第10题:

    多选题
    You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for the RMAN. To accomplish the backup, you issued the following RMAN command:   RMAN> BACKUP SECTION SIZE 300M TABLESPACE users;   Which two statements are true regarding the execution of the above command?()
    A

    The RMAN parallelizes the backup although the parallelism is not set for a channel.

    B

    The backup piece size will be limited to 300 MB.

    C

    The operation is accomplished using the default channel available.

    D

    Three channels for the tape drive must be configured by setting the parallelism to three.


    正确答案: B,D
    解析: 暂无解析

  • 第11题:

    多选题
    You want to take a complete database backup using RMAN. The backup should consist onlythe used blocks from your database. Which two statements are true about this backup operation?()
    A

    Backup compression should be enabled

    B

    Parallelism for the channel should be set to 2

    C

    All the files must be backed up as backup sets

    D

    The backup may be stored either on disk or on media with media manager


    正确答案: B,D
    解析: 暂无解析

  • 第12题:

    多选题
    You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database. Which two statements are true about this backup operation? ()(Choose two.)
    A

    Backup compression should be enabled

    B

    Parallelism for the channel should be set to 2

    C

    All the files must be backed up as backup sets

    D

    The backup may be stored either on disk or on media with media manager


    正确答案: C,D
    解析: 暂无解析

  • 第13题:

    You want to take a complete database backup using RMAN. The backup should consist onlythe used blocks from your database. Which two statements are true about this backup operation?() 

    • A、 Backup compression should be enabled
    • B、 Parallelism for the channel should be set to 2
    • C、 All the files must be backed up as backup sets
    • D、 The backup may be stored either on disk or on media with media manager

    正确答案:C,D

  • 第14题:

    You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN). To accomplish the backup, you issued the following RMAN command: RMAN> BACKUP SECTION SIZE 300M TABLESPACE users; Which two statements are true about the execution of the above command? ()(Choose two.)

    • A、The backup piece size will be limited to 300 MB
    • B、The RMAN uses multiplexing to perform backup
    • C、The operation is accomplished using the default channel available
    • D、The RMAN parallelizes the backup although the parallelism is not set for a channel

    正确答案:A,C

  • 第15题:

    Which statement is true about a whole consistent database backup on a database running in ARCHIVELOG mode()

    • A、The backup will consist of used data blocks only.
    • B、The database must be shut down to accomplish the backup.
    • C、The backup can be accomplished without shutting down the database.
    • D、The backup will contain all database files that have never been backed up.

    正确答案:B

  • 第16题:

    Examine the following command used to perform incremental level 0 backup:   RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE;   To enable the block change tracking, after the incremental level 0 backup you issued the following command:   SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ’/mydir/ rman_change_track.f’;To perform incremental level 1 cumulative backup, you issued the following command:   RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;   Which two statements are true in the above situation?()

    • A、 The block change tracking data will be used only from the next incremental 0 backup.
    • B、 The incremental backup will use change tracking data for accomplishing the backup.
    • C、 The incremental backup will not use change tracking data for accomplishing the backup.
    • D、 The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.

    正确答案:A,C

  • 第17题:

    You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database.Which two statements are true about this backup operation?()

    • A、Backup compression should be enabled
    • B、Parallelism for the channel should be set to 2
    • C、All the files must be backed up as backup sets
    • D、The backup may be stored either on disk or on media with media manager

    正确答案:D,E

  • 第18题:

    You work as a database administrator for Certkiller .com. According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()

    • A、The backup is similar to image copy.
    • B、The backup contains all used data blocks.
    • C、The backup contains only unused data blocks.
    • D、The backup contains all data blocks changed since the last incremental level 1 backup.

    正确答案:B

  • 第19题:

    多选题
    You want to perform an RMAN backup of database as a copy. Which two factors will you consider whileperforming the backup operation?() (Choose two).
    A

    The backup as copy can only be taken to disk

    B

    The backup as copy can only be taken to tape

    C

    Backup can be performed only when the instance is shutdown

    D

    Backup will constitute all used and unused blocks in the database


    正确答案: C,A
    解析: 暂无解析

  • 第20题:

    多选题
    Examine the following command used to perform incremental level 0 backup:   RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE;   To enable the block change tracking, after the incremental level 0 backup you issued the following command:   SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ’/mydir/ rman_change_track.f’;To perform incremental level 1 cumulative backup, you issued the following command:   RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;   Which two statements are true in the above situation?()
    A

    The block change tracking data will be used only from the next incremental 0 backup.

    B

    The incremental backup will use change tracking data for accomplishing the backup.

    C

    The incremental backup will not use change tracking data for accomplishing the backup.

    D

    The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.


    正确答案: C,A
    解析: 暂无解析

  • 第21题:

    多选题
    You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation?()
    A

    The backup as copy can only be taken to disk

    B

    The backup as copy can only be taken to tape

    C

    Backup can be performed only when the instance is shutdown

    D

    Backup will constitute all used and unused blocks in the database


    正确答案: B,D
    解析: 暂无解析

  • 第22题:

    多选题
    You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN). To accomplish the backup, you issued the following RMAN command: RMAN> BACKUP SECTION SIZE 300M TABLESPACE users; Which two statements are true about the execution of the above command? ()(Choose two.)
    A

    The backup piece size will be limited to 300 MB

    B

    The RMAN uses multiplexing to perform backup

    C

    The operation is accomplished using the default channel available

    D

    The RMAN parallelizes the backup although the parallelism is not set for a channel


    正确答案: B,A
    解析: 暂无解析

  • 第23题:

    单选题
    You work as a database administrator for Certkiller .com. According to your backup strategy, you performed an incremental level 0 backup of your database. Which statement regarding this backup is true?()
    A

    The backup is similar to image copy.

    B

    The backup contains all used data blocks.

    C

    The backup contains only unused data blocks.

    D

    The backup contains all data blocks changed since the last incremental level 1 backup.


    正确答案: C
    解析: 暂无解析

  • 第24题:

    多选题
    You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database.Which two statements are true about this backup operation?()
    A

    Backup compression should be enabled

    B

    Parallelism for the channel should be set to 2

    C

    All the files must be backed up as backup sets

    D

    The backup may be stored either on disk or on media with media manager


    正确答案: C,D
    解析: 暂无解析