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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

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相似问题和答案

第1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2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3题：

——() ? —— I want to buy a pair of shoes.

A. What are you doing?

B. What can I do for you?

C. How can I help you?

D. How can I do for you?


参考答案：BC

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 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6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7题：

You are analyzing the performance of a SQL Azure database.   You need to recommend an approach for identifying the indexes that should be added to improve database performance.  What should you recommend？（）

  • A、 Use SQL Server Profiler to identify missing indexes.
  • B、 Use the Database Engine Tuning Advisor to identify missing indexes.
  • C、 Use a Dynamic Management View to analyze query plans.
  • D、 Use a DynamicManagement View to ascertain the number of pending I/O requests.

正确答案:C

第8题：

If you want to go, I would give you my advice that you take an umbrella.


参考答案： 你要去，我建议你别忘了带把伞。

第9题：

You are maintaining the SALES database for eSoft Corporation. You have not configured ASMM on the database. You want to know what size of the SGA will provide the best performance.  Which advisor would you use to determine the suitable size of the SGA？（）

  • A、 SQL Tuning Advisor
  • B、 Undo Advisor
  • C、 ADDM
  • D、 Memory Advisor

正确答案:D

第10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

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