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多选题Which two statements are true with respect to the maintenance window? （）AA DBA can enable or disable an individual task in all maintenance windows.BA DBA cannot change the duration of the maintenance window after it is created.CIn case of a long mainte

题目
多选题
Which two statements are true with respect to the maintenance window? （）
A

A DBA can enable or disable an individual task in all maintenance windows.

B

A DBA cannot change the duration of the maintenance window after it is created.

C

In case of a long maintenance window, all Automated Maintenance Tasks are restarted every four hours.

D

A DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window.

参考答案和解析
正确答案： A,C
解析： 暂无解析
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相似问题和答案

第1题：

Which maintenance functions can a GMDSS Radio Operator perform ________．

A.The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent

B.The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles

C.All levels of maintenance must be performed by a licensed GMDSS Radio Maintainer

D.The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraints


正确答案：B

第2题：

Which of the following is not a typical maintenance task within a network maintenance model？（）

  • A、Providing technical customer support
  • B、Changing configurations
  • C、Updating software
  • D、Monitoring network performance
  • E、Replacing hardware
  • F、Scheduling backups

正确答案:A

第3题：

The Database Resource Manager is automatically enabled in the maintenance window that runs the Automated Maintenance Task. What is the reason for this?()

A. to prevent the creation of an excessive number of scheduler job classes

B. to allow the Automated Maintenance Tasks to use system resources without any restriction

C. to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window

D. to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resources


参考答案：D

第4题：

After performing a clean shut down of the database instance for maintenance， you mount the database andthen execute a command to open the database：SQL> ALTER DATABASE OPEN； Which two statements are true（）

  • A、The online redo log files and online data files are opened.
  • B、All the online data file headers are checked for consistency.
  • C、Instance recovery is performed before opening the database.
  • D、The path and existence of all the log file members are checked

正确答案:A,B

第5题：

Which TWO of the following tasks of system maintenance can be improved by using Remote Deployment Manager？（）

  • A、Deployment
  • B、Software maintenance
  • C、Driver updates
  • D、Disposal
  • E、Software inventory

正确答案:A,D

第6题：

英译中：Could you call maintenance to fix the window and housekeeping to clean the carpet, please?


正确答案:您能派名维修人员来修理窗户并派名客房服务员来打扫一下地毯吗？

第7题：

Which of the following are benefits to server virtualization?（）

  • A、Better server hardware leverage
  • B、Increased application security
  • C、Smaller backup window needed
  • D、Lower power consumption
  • E、Smaller datacenter footprint
  • F、Little to no maintenance needed

正确答案:A,B,E

第8题：

Which of the following advisors is run in every maintenance window by the auto－task system?()

A. The Memory Advisor

B. The SQL Tuning Advisor

C. The Undo Advisor

D. The SQL Access Advisor


参考答案：B

第9题：

Which three statements are true regarding the functioning of the Autotask Background Process （ABP）？（）

  • A、 It creates jobs without considering the priorities associated with them.
  • B、 It translates tasks into jobs for execution by the scheduler.
  • C、 It determines the list of jobs that must be created for each maintenance window.
  • D、 It is spawned by the MMON background process at the start of the maintenance window.
  • E、 It maintains a repository in the SYSTEM tablespace to store the history of the execution of all tasks.

正确答案:B,C,D

第10题：

The Database Resource Manager is automatically enabled in the maintenance window that runs the Automated Maintenance Task. What is the reason for this?（）

  • A、to prevent the creation of an excessive number of scheduler job classes
  • B、to allow the Automated Maintenance Tasks to use system resources without any restriction
  • C、to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window
  • D、to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resources

正确答案:D

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