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单选题After a number of days set by the parameter CONTROL_FILE_RECORD_KEEP_TIME， the information in the control file is overwritten by RMAN. What is this parameter’s default value？（）A 1 dayB 5 daysC 7 daysD 31 days

题目
单选题
After a number of days set by the parameter CONTROL_FILE_RECORD_KEEP_TIME， the information in the control file is overwritten by RMAN. What is this parameter’s default value？（）
A

1 day

B

5 days

C

7 days

D

31 days

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相似问题和答案

第1题：

Maybe we’ll soon be able to forecast the weather fo______．

A．one day

B．two days

C．five days

D．seven days or even longer


正确答案：D
文章最后一句说“they may be able to forecast the weather for a week or moreahead．”一个星期是七天，所以答案选D。

第2题：

● Each box is an activity; the number it contains is the duration of the activity in days. The duration of the critical path is （75） .

（75）

A．16 days

B．14 days

C．19 days

D．20 days


正确答案：C

第3题：

Examine the exhibit to view the parameters set in your parameter file. (Click the Exhibit(s) button.)You restart the instance.To what value will the MEMORY_MAX_TARGET parameter be set by default?()

A.120M

B.320M

C.480M

D.600M


参考答案：D

第4题：

You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup metadata information. You want to enable the reusable section of the control file to expand itself if the oldest record cannot be reused， and whenever a new record is added to the reusable section of the control file. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME parameter？（）

  • A、 Zero
  • B、 One or more
  • C、 NONE
  • D、 DEFAULT

正确答案:B

第5题：

You are using the control file to maintain information about the database backups that are being performed by Recovery Manager (RMAN). Identify two scenarios is which you must have a recovery catalog.（）

  • A、To store the backup information of multiple database
  • B、To restrict the amount of space that is used by the backups
  • C、To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.
  • D、To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.

正确答案:A,D

第6题：

Each box is an activity; the number it contains is the duration of the activity in days. The duration of the critical path is(75)

A．16days

B．14days

C．19days

D．20days


正确答案：C
解析：关键路径为最长时间的线路，3+6+7+1+2=19。

第7题：

Each box is an activity；the number it contains is the duration of the activity in days.The duration of the critical path is.

A.16 days
B.14 days
C.19 days
D.20 days

答案：C
解析：
题意：每一个方块代表一个活动，其中的数字是互动持续时间（天为单位），求关键路径的时间。

关键路径就是看每一个并行过程最大值的路径。如图，应该是：3→6→7→1→2，共19天。

第8题：

AfteranumberofdayssetbytheparameterCONTROL_FILE_RECORD_KEEP_TIME,theinformationinthecontrolfileisoverwrittenbyRMAN.Whatisthisparameter’sdefaultvalue?()

A.1day

B.5days

C.7days

D.31days


参考答案：B

第9题：

In which scenario， will you issue the following command？（） RMAN> REPORT NEED BACKUP DAYS 7；

  • A、 to configure RMAN to maintain backup information in the RMAN repository for seven days
  • B、 to configure RMAN to maintain backup information in the control file for at least seven days
  • C、 to display the list of files that have not been backed up for the last seven days
  • D、 to display the list of files that must be backed up within seven days

正确答案:C

第10题：

You are maintaining your production database in Oracle10g. You want the circular reuse records in the control file of the target database to be reused as required.   Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter？（）

  • A、 0
  • B、 1
  • C、 NONE
  • D、 DEFAULT

正确答案:A

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