You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE;The next day, you issue the following command:BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which statement about the use of the change tracking file i

题目

You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE;The next day, you issue the following command:BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which statement about the use of the change tracking file is true?（）

A. RMAN reads the block change tracking file only when it performs the incremental level 0 backup.

B. RMAN reads the block change tracking file when it performs both incremental backups.

C. RMAN reads the block change tracking file only when it performs the incremental level 1 backup.

D. RMAN does not read the block change tracking file when it performs either incremental backup.

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更多“You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVE ”相关问题

  • 第1题：

    YouareusingtheBlockMediaRecoveryfeaturetorecovertheblocksthataremarkedcorruptsincethelastbackup.Whichviewwillyouquerytodisplayinformationaboutthedatablocksthataremarkedcorruptsincethelastbackup?()

    A.V$BACKUP_CORRUPTION

    B.V$COPY_CORRUPTION

    C.V$DATABASE_BLOCK_CORRUPTION

    D.RC_BACKUP_CORRUPTION


    参考答案：C

  • 第2题：

    WhichRMANbackupcommandisusedtocreatetheblock－changetrackingfile?()

    A.alterdatabasecreateblockchangetrackingfile

    B.alterdatabaseenableblockchangefile

    C.alterdatabaseenableblockchangetrackingusingfile，/ora01/opt/block_change_tracking.fil

    D.altersystemenableblockchangetrackingusingfile’/ora01/opt/block_change_tracking.fil’

    E.altersystemblockchangetrackingon


    参考答案：C

  • 第3题：

    窗体中有3个命令按钮，分别命名为Commandl、Command2和Command3。当单击Commandl按钮时，Command2按钮变为可用，Command3按钮变为不可见。下列Corn—mandl的单击事件过程中，正确的是（ ）。

    A.private sub Command1 Click（ ） Command2．Visible—trueCommand3．Visible—false End Sub

    B.private sub Commandl Click（ ） Command2．Enable—trueCommand3．Enable=falseEnd Sub

    C.private sub Command1 Click（ ） Command2．Enable—trueCommand3．Visible—falseEnd Sub

    D.private sub Command1 Click（ ） Command2．Visible=trueCommand3．Enable—falseEnd Sub


    正确答案：C
    C。【解析】按钮可用应设置按钮的Enabled属性，按钮不可见应设置按钮的Visible属性。

  • 第4题：

    Whichdynamicviewdisplaysthestatusofblock－changetracking?()

    A.V$BLOCK_CHANGE

    B.V$BLOCK_CHANGE_TRACKING

    C.V$BLOCKCHANGE

    D.V$BLOCK_TRACKING


    参考答案：B

  • 第5题：

    – David, you've been losing your temper over nothing lately.– ( ).

    A. I haven’t been getting much sleep either

    B. You’d better not push yourself too hard, or you’ll get sick

    C. I’m sorry. I shouldn’t have blown up like that

    D. You’d better do exercises regularly


    正确答案:C

  • 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.

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