You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.Which method or feature should you use?()A. Compare Period ADDM reportB. AWR Compare Period reportC. Active Session Hi

题目
You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.Which method or feature should you use?()

A. Compare Period ADDM report

B. AWR Compare Period report

C. Active Session History (ASH) report

D. Taking a new snapshot and comparing it with a preserved snapshot


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    What's ( )job? Are ( ) British?

    A. your, your

    B. you, your

    C. your, you


    正确答案:C

  • 第2题:

    Merry Christmas, George! Here is a card for ________, with ________ best withes.

    A.you…your

    B.you…our

    C.us…our

    D.us…your


    参考答案:B

  • 第3题:

    ( ) – Is Miss White __________ English teacher, Maria?

    – No, she teaches __________ geography.

    A.your;my

    B.you;mine

    C.you;us

    D.your;us


    正确答案:D

  • 第4题:

    A:I have got a pain in my chest. B:You ( )see the doctor.

    A. have

    B. need

    C. should


    正确答案:C

  • 第5题:

    YouareaDatabaseAdministratorwithWonderWeb.You&en

    YouareaDatabaseAdministratorwithWonderWeb.YouuseapasswordfiletoestablishconnectionstotheSalesdatabaselocatedontheserver.Youcreatedthepasswordfileusingthefollowingcommand:

    ORAPWDfile=d:\oracle\ora9i\orapwU01password=adminentries=4

    Youerroneouslydeletedthepasswordfilewhilethedatabasewasrunning.Youre-createthepasswordfileusingthefollowingcommand:

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    However,whenyoutrytoconnectastheSYSuser,youreceivethefollowingerror:

    ORA-01031:insufficientprivileges

    Whatshouldyoudotoresolvethiserror?()


    参考答案:D

  • 第6题:

    你最好控制一下上网聊天的时间。(汉译英)

    A.You'd better set a limit for your online chat time.

    B.You'd better set a limit on your online chat time.

    C.You'd better set a limit on your online chatting time.

    D.You'd better set a limit for your online chatting time.


    You'd better set a limit on your online chatting time.