单选题A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup

题目
单选题
A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?()
A

savevg

B

tar

C

cpio

D

mksysb

参考答案和解析
正确答案: B
解析: 暂无解析
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相似问题和答案

第1题:

A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?()

A.savevg

B.tar

C.cpio

D.mksysb


参考答案:B

第2题:

A system administrator needs to backup datavg which contains a database that pre-allocates files by padding them with nulls, similar to treating them as sparse files. In order to effectively backup and be able to restore the datavg files, which backup method should be used?()

  • A、savevg
  • B、tar
  • C、cpio
  • D、mksysb

正确答案:B

第3题:

You performed the RMAN database backup with the KEEP option.Which two statements are true about this backup?() (Choose two)

A. The KEEP option overrides the configured retention policy

B. The KEEP option is an attribute of an individual backup piece

C. The backup contains only data files and archived redo log files

D. The backup contains data files, the server parameter file and the control file even if the control file auto backup is disabled


参考答案:A, D

第4题:

You work as a database administrator for Supportcenter.cn. You are using Recovery Manager (RMAN) to perform backups in your databases. Which four backup operations can be performed using RMAN?()

  • A、A backup of the target database when it is mounted
  • B、A backup of online redo log files when the database is open
  • C、A backup of only used data blocks in the file beingbeingbackup up
  • D、A backup of online, read/write data files when the database is open
  • E、A backup of only those data blocks that have changed since a previous backup
  • F、A backup of online, read/write data files when the database is in the NOMOUNT state.

正确答案:A,C,D,E

第5题:

A System p administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect.  Which of the following commands can be used to determine the block size of the backup tape ()

  • A、dd
  • B、tar
  • C、cpio
  • D、restore

正确答案:A

第6题:

A company uses an application that creates temp files that need to be backed up on a daily basis. A test restore fails to restore the temp files. In checking the backup catalog, Karen, a technician, discovers that the temp files are not being backed up. Which of the following is the MOST likely reason?()

  • A、To backup temp files, the /T switch must be used.
  • B、NTBACKUP does not backup temp files by default.
  • C、The NTBACKUP utility cannot backup temp files.
  • D、NTBACKUP is not running under the correct credentials.

正确答案:B

第7题:

A customer has the need to implement a tape backup solution to backup a 500GB database on a daily basis.  Which of the following factors is the most important consideration in the design of a backup and restore solution?()

  • A、Amount of data in the backup
  • B、Bandwidth available to the tape device
  • C、Length of the backup/restore window
  • D、Speed that the backup system can find files for restoration

正确答案:C

第8题:

Before performing a mksysb system backup, which of the following procedures should a system administrator perform to avoid backing up certain user files?()

A.Add the list of files to /etc/exclude.rootvg.

B.Modify the image.data file and add the files to be excluded form the backup.

C.Modify the bosinst.data file and specify which files are to be excluded from the backup.

D.Specify the files to be excluded on the command line when executing the mksysb command.


参考答案:B

第9题:

A system administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect. Which of the following commands can be used to determine the block size of the backup tape?()

  • A、dd
  • B、tar
  • C、cpio
  • D、restore

正确答案:A

第10题:

You performed the RMAN database backup with the KEEP option. Which two statements are true regarding this backup?()

  • A、 The backup contains data files, the server parameter file,and the control file even if the control file  autobackup is disabled.
  • B、 The KEEP option overrides the configured retention policy.
  • C、 The backup contains only data files and archived redo log files.
  • D、 The KEEP option is an attribute of an individual backup piece.

正确答案:A,B

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