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You are tuning RMAN to optimize performance.You want tape I/

题目
单选题
You are tuning RMAN to optimize performance.You want tape I/O to be asynchronous when you perform tape backups. Which action should you take?（）
A

Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE

B

Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE

C

Use compression when performing tape backups

D

Configure multiple SBT channels

参考答案和解析
正确答案： D
解析： 暂无解析
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相似问题和答案

第1题：

You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To accomplish the backup, you issued the following RMAN command:RMAN> BACKUPSECTION SIZE 300M TABLESPACE users;Identify the appropriate configuration to accomplish faster and optimized backups using the above command.（）

A. The SBT channel must be configured, with the MAXPIECESIZE set to 300 mb.

B. The SBT channel must be configured, with the parallelism setting for the SBT devices set to 3.

C. The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0.

D. The SBT channel must be configured, with the default parallelism setting for the SBT devices set to 1


参考答案：B

第2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3题：

—What do you want to do?\n—________________.

A.No, I don’t want to do anything.

B.I want to watch TV for a change.

C.What do you want to do then?

D.How about having a picnic?


参考答案：B

第4题：

You want to implement the backup and recovery strategy in your database using Recovery Manager （RMAN）. You have chosen the control file of the target database for the RMAN repository.  Which command-line RMAN command would you use to establish a local connection between RMAN and the RMAN repository if your database is using password file authentication？（）

  • A、 rman TARGET / NOCATALOG
  • B、 rman TARGET sys/password
  • C、 rman TARGET sys/password AS SYSDBA
  • D、 rman TARGET sys/password@db_name CATALOG rman_user/rman_password@rcat

正确答案:B

第5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6题：

“你们可以按我指定的时间把礼物送到吗?” 翻译错误的是( )。

A.Can you deliver my present the time I want?

B.Can you deliver my present at time I want?

C.Can you deliver present at the time I want?

D.Can you deliver my present at the time I want?


正确答案：ABC

第7题：

The BACKUP_TAPE_IO_SLAVES parameter is set to FALSE for the database instance. Which statement is true while performing a tape backup in an RMAN session?（）

  • A、The tape I/O performed is asynchronous
  • B、The tape buffer is allocated from the System Global Area (SGA)
  • C、The tape buffer is allocated from the Program Global Area (PGA)
  • D、Oracle I/O uses an interrupt mechanism to determine when each I/O completes

正确答案:C

第8题：

You are tuning RMAN to optimize performance.You want tape I／O to be asynchronous when you perform tape backups. Which action should you take?()

A. Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE

B.Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE

C. Use compression when performing tape backups

D. Configure multiple SBT channels


参考答案：B

第9题：

You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）

  • A、 multiplexed control files
  • B、 RMAN obsolete backups
  • C、 multiplexed online redo log files
  • D、 archived redo logs that have not been copied to tape

正确答案:B

第10题：

You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To accomplish the backup， you issued the following RMAN command：   RMAN>BACKUP SECTION SIZE 300M TABLESPACE users；   What configuration should be effected to accomplish faster and optimized backups by using the above command？（）

  • A、 The SBT channel must be configured， with the default parallelism setting for the SBT device set to 1
  • B、 The COMPATIBLE initialization parameter for the database instance must be set to at least 10.0
  • C、 The SBT channel must be configured， with the parallelism setting for the SBT device set to 3
  • D、 The SBT channel must be configured， with the MAXPIECESIZE set to 300 MB

正确答案:D

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