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参考答案和解析
正确答案:正确
更多“RMAN中的COPY命令与BACKUP命令生成的备份文件不同,B”相关问题
  • 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:

    无论是使用BACKUP、COPY还是BAKCUP AS COPY,在恢复数据库时都需要用到RESTORE命令。


    正确答案:错误

  • 第3题:

    Your database in running in the ARCHIVELOG mode. You issue the following command to back up datafile 2 in your database.   RMAN> COPY DATAFILE 2 TO ’D:///ORACLE/ORA90/MYNEWDB/DA2.DBF’;   Which two statements are true regarding the backup created using this command?()

    • A、 The copy of the datafile created is stored in the RMAN repository.
    • B、 The copy of the datafile created can be viewed using the LIST BACKUP command.
    • C、 The copy of the datafile created using this COPY command can be placed only on the disk.
    • D、 The copy of the datafile created is similar to the backup of the file created using the BACKUP command.
    • E、 The copy of the datafile created can be used for recovering the database using the user-managed recovery method.

    正确答案:C,E

  • 第4题:

    RMAN的COPY命令生成的图像副本最好经过压缩来存储,以节约磁盘空间和提高恢复速度。


    正确答案:正确

  • 第5题:

    下列命令中,仅拷贝表文件结构的命令是()

    • A、COPY TO
    • B、COPY STRUCTURE TO
    • C、COPY FILE TO
    • D、COPY STRUCTURE TO EXETENDED

    正确答案:B

  • 第6题:

    DOS中备份文件命令是()。从备份盘中恢复文件的命令是()。


    正确答案:BACKUP;RESTORE

  • 第7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8题:

    When CONFIGURE CONTROLFILE AUTOBACKUP is set to ON, RMAN automatically performs a control file autobackup in which three situations?()

    • A、At the end of every RUN block. 
    • B、After every SET CONTROLFILE AUTOBACKUP FORMAT command. 
    • C、After every BACKUP or COPY command issued at the RMAN prompt. 
    • D、At the end of every RUN block if the last command in the block was either BACKUP or COPY. 
    • E、Whenever a BACKUP or COPY command within a RUN block is followed by a command that is neither BACKUP nor COPY. 
    • F、After every BACKUP or COPY command within a RUN block that is followed by the CONFIGURE CONTROLFILE AUTOBACKUP FORMAT command.

    正确答案:C,D,E

  • 第9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: C,B
    解析: 暂无解析

  • 第10题:

    多选题
    Your database in running in the ARCHIVELOG mode. You issue the following command to back up datafile 2 in your database.   RMAN> COPY DATAFILE 2 TO ’D:///ORACLE/ORA90/MYNEWDB/DA2.DBF’;   Which two statements are true regarding the backup created using this command?()
    A

    The copy of the datafile created is stored in the RMAN repository.

    B

    The copy of the datafile created can be viewed using the LIST BACKUP command.

    C

    The copy of the datafile created using this COPY command can be placed only on the disk.

    D

    The copy of the datafile created is similar to the backup of the file created using the BACKUP command.

    E

    The copy of the datafile created can be used for recovering the database using the user-managed recovery method.


    正确答案: C,E
    解析: 暂无解析

  • 第11题:

    判断题
    无论是使用BACKUP、COPY还是BAKCUP AS COPY,在恢复数据库时都需要用到RESTORE命令。
    A

    B


    正确答案:
    解析: 暂无解析

  • 第12题:

    判断题
    RMAN的COPY命令生成的图像副本最好经过压缩来存储,以节约磁盘空间和提高恢复速度。
    A

    B


    正确答案:
    解析: RMAN的COPY命令生成的备份文件我们称之为图像副本,图像副本在数据库恢复时会有速度与效率上的优势,但是图像副本只能存储在磁盘上。而且不能被压缩,要求比备份集大的多的空间。

  • 第13题:

    下面命令执行后都生成TEMP.DBF文件,其中肯定生成空文件的命令是( )。

    A.SORT TO TEMP

    B.COPY TOTEMP

    C.COPY STRUCTURE TO TEMP

    D.COPY STRUCTURE TO TEMP EXTENDED


    正确答案:C

  • 第14题:

    OFFSET命令与COPY命令有什么区别?如何COPY命令连续复制多个对象?


    正确答案: 偏移命令主要是指在指定位置或指定距离复制出目标对象;而复制命令无法指定距离来复制出目标对象。
    要使用复制命令连续复制多个对象的操作是在复制时指定选项“M”,则可以连续手复制多个对象。

  • 第15题:

    为磁盘拷贝命令,此命令只能拷贝软盘,硬盘和网络驱动器不能使用此命令()。

    • A、Diskcopy;
    • B、copy;
    • C、RENAME;
    • D、BACKUP。

    正确答案:A

  • 第16题:

    COPY命令可以备份的文件有()

    • A、数据文件
    • B、控制文件
    • C、Datafilecopy
    • D、Controlfilecopy
    • E、Backup set

    正确答案:A,B,C,D,E

  • 第17题:

    下面命令执行后都生成TEMP.DBF文件,其中肯定生成空文件的命令是()

    • A、SORT TO TEMP
    • B、COPY TO TEMP
    • C、COPY STRUCTURE TO TEMP
    • D、COPY STRUCTURE TO TEMP EXTENDED

    正确答案:C

  • 第18题:

    You want to perform the database backup when user activity on your system is low, such as between 12:00 a.m. and 2:00 am. Which command terminates with an error if the backup is not complete at the end of the specified duration?()

    • A、RMAN> BACKUP DURATION 2:00 MINIMIZE LOAD DATABASE
    • B、RMAN> BACKUP DURATION 2:00 PARTIAL FILESPERSET 1 DATABASE
    • C、RMAN> BACKUP DURATION 2:00 PARTIAL MINIMIZE TIME DATABASE 
    • D、RMAN> BACKUP AS COPY DURATION 2:00 PARTIAL MINIMIZE LOAD DATABASE

    正确答案:A

  • 第19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20题:

    多选题
    When CONFIGURE CONTROLFILE AUTOBACKUP is set to ON, RMAN automatically performs a control file autobackup in which three situations?()
    A

    At the end of every RUN block.

    B

    After every SET CONTROLFILE AUTOBACKUP FORMAT command.

    C

    After every BACKUP or COPY command issued at the RMAN prompt.

    D

    At the end of every RUN block if the last command in the block was either BACKUP or COPY.

    E

    Whenever a BACKUP or COPY command within a RUN block is followed by a command that is neither BACKUP nor COPY.

    F

    After every BACKUP or COPY command within a RUN block that is followed by the CONFIGURE CONTROLFILE AUTOBACKUP FORMAT command.


    正确答案: D,C
    解析: 暂无解析

  • 第21题:

    问答题
    OFFSET命令与COPY命令有什么区别?如何COPY命令连续复制多个对象?

    正确答案: 偏移命令主要是指在指定位置或指定距离复制出目标对象;而复制命令无法指定距离来复制出目标对象。
    要使用复制命令连续复制多个对象的操作是在复制时指定选项“M”,则可以连续手复制多个对象。
    解析: 暂无解析

  • 第22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23题:

    判断题
    RMAN中的COPY命令与BACKUP命令生成的备份文件不同,BACKUP命令生成的备份集,文件中的数据是以RMAN的专有格式进行保存的。
    A

    B


    正确答案:
    解析: 暂无解析