更多“[A] blocks [B] strikes [C] puffs [D] cancels ”相关问题
  • 第1题:

    Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?()

    • A、 The df command only counts the number of disk blocks and superblocks. 
    • B、 The df command ignores space used for inodes, gnodes, and vnodes.
    • C、 The du command does not take into account filesystem metadata. 
    • D、 The du command counts indirect blocks and superblocks in its calculations. 

    正确答案:C

  • 第2题:

    The general additional risks including()are covered in all risks coverage.

    • A、risk of shortage
    • B、risk of leakage
    • C、strikes risk
    • D、risk of rust

    正确答案:A,B,D

  • 第3题:

    In the instance of the PROD database, the checkpoint (CKPT) process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration, the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started?()

    • A、The modified blocks would be written to the data files.
    • B、The modified blocks would be written to the temp files.
    • C、The modified blocks would be written to the control file.
    • D、The modified blocks would be written to the redo log files.
    • E、The modified blocks would be written to the archived redo log files.
    • F、The modified blocks would be retained in the database buffer cache.

    正确答案:A

  • 第4题:

    he data blocks in your form module are based on object tables. How would you create a master-detail relationship between two of these blocks?()

    • A、Use the Data Block Wizard and base the relation on a REF pointer. 
    • B、In the Object Navigator, select the Relation node under the master block and click the Create icon. Build the relation manually and coordinate the blocks using triggers.
    • C、Use the Data Block Wizard, and base the relation on the primary key-foreign key relationship in the database. 
    • D、This task is not possible because master-detail relations can be implemented only for blocks based on relational tables. 

    正确答案:A

  • 第5题:

    Which two statements are true regarding the functionality of the remap command in ASMCMD?()

    • A、It repairs blocks that have read disk I/O errors.
    • B、It checks whether the alias metadata directory and the file directory are linked correctly.
    • C、It repairs blocks by always reading them from the mirror copy and writing them to the original location.
    • D、It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read properly.

    正确答案:A,D

  • 第6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7题:

    单选题
    Our holiday plans()because of transport strikes.
    A

    fell out

    B

    fell through

    C

    fell over

    D

    fell behind


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    You executed the following code:   BACKUP VALIDATE DATABASE;   BLOCKRECOVER CORRUPTION LIST;  What will be the result of executing the above code?()
    A

     The code will run a backup validation to populate the V$BACKUP_CORRUPTION view and repair corrupt blocks, if any, recorded in the view.

    B

     The code will run a backup validate to populate the V$COPY_CORRUPTION view and then repair any corrupt blocks recorded in the view.

    C

     The code will runs a backup validate to populate the V$DATABASE_BLOCK_CORRUPTION view and then repair corrupt blocks, if any, recorded in the view.

    D

     The code will run a backup validate to populate the RC_BACKUP_CORRUPTION view and then repair corrupt blocks, if any, recorded in the view.


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    In this passage puffs can include all of the following except ______.
    A

    advertisements that contain the seller’s opinion only

    B

    advertisements that connect an unrelated quality to a product

    C

    advertisements that compare the advertised product with other products

    D

    advertisements that seem to be facts but not exactly so


    正确答案: A
    解析:
    文章首段指出凡是包括具有误导性观点和夸张内容的广告都叫做puffs,第三、四段分别介绍了把卖方的观点描述得像事实一样和把不相关品质与某一产品联系起来的广告,唯独没有提到选项C的内容。

  • 第10题:

    单选题
    Which of the following conclusions is most appropriate to draw to describe why du shows fewer blocks used than df?()
    A

     The df command only counts the number of disk blocks and superblocks. 

    B

     The df command ignores space used for inodes, gnodes, and vnodes.

    C

     The du command does not take into account filesystem metadata. 

    D

     The du command counts indirect blocks and superblocks in its calculations. 


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    What does the passage mainly discuss?
    A

    Rules and regulations of advertising.

    B

    Learning how to spot advertising puffs.

    C

    Advertisements.

    D

    The agency regulating the content of advertisements.


    正确答案: A
    解析:
    文章首段第一句便指出很多广告其实只是puffs,接下来关键性的一句是“Learn how to spot advertising puff.”,然后全文就以这一话题展开讨论,故选B。

  • 第12题:

    单选题
    The DB_BLOCK_CHECKING initialization parameter is set to FALSE. What level of block checking would be performed?()
    A

     The Oracle database will not perform block checking for any of the data blocks.

    B

     The Oracle database will perform block checking for the default permanent tablespace only. 

    C

     The Oracle database will perform block checking for the data blocks in all user tablespaces.

    D

     The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only.

    E

     The Oracle database will perform block checking for the data blocks in the SYSTEM and SYSAUX tablespaces.


    正确答案: E
    解析: 暂无解析

  • 第13题:

    Which of the following is not an advantage of block media recovery (BMR)?()

    • A、 Reduced MTTR.
    • B、 Datafiles remain offline while corrupt blocks are repaired.
    • C、 Datafiles remain online while corrupt blocks are repaired.
    • D、 A and C

    正确答案:B

  • 第14题:

    The DB_BLOCK_CHECKING initialization parameter is set to FALSE. What level of block checking would be performed?()

    • A、 The Oracle database will not perform block checking for any of the data blocks.
    • B、 The Oracle database will perform block checking for the default permanent tablespace only. 
    • C、 The Oracle database will perform block checking for the data blocks in all user tablespaces.
    • D、 The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only.
    • E、 The Oracle database will perform block checking for the data blocks in the SYSTEM and SYSAUX tablespaces.

    正确答案:D

  • 第15题:

    The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关  Which block checking would be performed?()

    • A、The Oracle database will perform block checking for the index blocks only 
    • B、The Oracle database will not perform block checking for any of the data blocks 
    • C、The Oracle database will perform block checking for the default permanent tablespace only 
    • D、The Oracle database will perform block checking for the data blocks in all user tablespaces 
    • E、The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle

    正确答案:E

  • 第16题:

    You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays, to tape.  Which two statements are true about differential incremental backups()

    • A、The backup performed on Sundays contains all the blocks that have ever been used in the database.
    • B、The backup performed on Sundays contains all the blocks that have changed since the last level 1backup. 
    • C、The backup performed on each working day contains all the blocks that have changed since the lastlevel 0 backup.
    • D、The backup performed on Monday contains all the blocks that have changed since the level 0 backup,and every other working day contains all the blocks that have changed since the level 1 backup.

    正确答案:A,D

  • 第17题:

    Which of the following statement is incorrect regarding RMAN?()

    • A、It detects corrupt blocks.
    • B、It performs only offline database backups.
    • C、It omits empty blocks during backups.
    • D、It performs tablespace point-in-time recovery (TSPITR).

    正确答案:B

  • 第18题:

    You executed the following code:   BACKUP VALIDATE DATABASE;   BLOCKRECOVER CORRUPTION LIST;  What will be the result of executing the above code?()  

    • A、 The code will run a backup validation to populate the V$BACKUP_CORRUPTION view and repair corrupt blocks, if any, recorded in the view.
    • B、 The code will run a backup validate to populate the V$COPY_CORRUPTION view and then repair any corrupt blocks recorded in the view.
    • C、 The code will runs a backup validate to populate the V$DATABASE_BLOCK_CORRUPTION view and then repair corrupt blocks, if any, recorded in the view.
    • D、 The code will run a backup validate to populate the RC_BACKUP_CORRUPTION view and then repair corrupt blocks, if any, recorded in the view.

    正确答案:C

  • 第19题:

    多选题
    You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays, to tape.  Which two statements are true about differential incremental backups()
    A

    The backup performed on Sundays contains all the blocks that have ever been used in the database.

    B

    The backup performed on Sundays contains all the blocks that have changed since the last level 1backup.

    C

    The backup performed on each working day contains all the blocks that have changed since the lastlevel 0 backup.

    D

    The backup performed on Monday contains all the blocks that have changed since the level 0 backup,and every other working day contains all the blocks that have changed since the level 1 backup.


    正确答案: C,D
    解析: 暂无解析

  • 第20题:

    多选题
    Which two statements are true regarding the functionality of the remap command in ASMCMD?()
    A

    It repairs blocks that have read disk I/O errors.

    B

    It checks whether the alias metadata directory and the file directory are linked correctly.

    C

    It repairs blocks by always reading them from the mirror copy and writing them to the original location.

    D

    It reads the blocks from a good copy of an ASM mirror and rewrites them to an alternate location on disk if the blocks on the original location cannot be read properly.


    正确答案: A,C
    解析: 暂无解析

  • 第21题:

    单选题
    You execute the following RMAN command in the order shown below: BACKUP VALIDATE DATABASE; BLOCKRECOVER CORRUPTION LIST; What will these commands do?()
    A

     Create a backup of the database and recover all corrupted blocks found in the backup.

    B

     Run a backup validation and list all the logically corrupt blocks as well as physically corrupt blocks in the database.

    C

     Run a backup validation to populate V$COPY_CORRUPTION view, and then list any corrupt blocks recorded in the view.

    D

     Run a backup validation to populate V$DATABASE_BLOCK_CORRUPTION view, and then repair any corrupt blocks recorded in the view.

    E

     Run a backup validation, repair any corrupt blocks found during the validation process, and then update V$DATABASE_BLOCK_CORRUPTION view to indicate which corrupt blocks have been repaired.


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    You execute the following RMAN commands in the order shown below:  BACKUP VALIDATE DATABASE;  BLOCKRECOVER CORRUPTION LIST;  What will these commands do?()
    A

    create a backup of the database and recover all corrupted blocks found in the backup

    B

    run a backup validation and list all the logically corrupt blocks as well as physically corrupt blocks in the database

    C

    run a backup validation to populate V$COPY_CORRUPTION view, and then list any corrupt blocks recorded in the view

    D

    run a backup validation to populate V$DATABASE_BLOCK_CORRUPTION view, and then repair any corrupt blocks recorded in the view

    E

    run a backup validation, repair any corrupt blocks found during the validation process, and then update V$DATABASE_BLOCK_CORRUPTION view to indicate which corrupt blocks have been repaired


    正确答案: C
    解析: 暂无解析

  • 第23题:

    单选题
    Which of the following is not an advantage of block media recovery (BMR)?()
    A

     Reduced MTTR.

    B

     Datafiles remain offline while corrupt blocks are repaired.

    C

     Datafiles remain online while corrupt blocks are repaired.

    D

     A and C


    正确答案: A
    解析: 暂无解析