Which statements are true regarding the system－defined moving window baseline in Oracle Database 11g?()A. It does not allow you to change the moving window size.B. Adaptive threshold functionalities use it by default to compute statistics.C. It is created

题目
Which statements are true regarding the system－defined moving window baseline in Oracle Database 11g?()

A. It does not allow you to change the moving window size.

B. Adaptive threshold functionalities use it by default to compute statistics.

C. It is created by default with the window size being equal to the AWR retention time.

D. It is created when the first snapshot is collected by the Automatic Workload Repository (AWR).

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参考答案和解析
参考答案：B, C
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    To set the history retention period for either window logging or job logging individually, which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used?()

    A. LOG_HISTORY

    B. JOB_LOG_RETENTION

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    D. WHICH_LOG

    E. LOG_NAME


    参考答案：A, D

  • 第2题：

    Oracle中如何设置audittrail审计，正确的说法是：（）

    A、在init.ora文件中设置“audit_trail=true”或者“audit_trail=db”

    B、以SYSDBA身份使用AUDITALLONSYS.AUD$BYACCESS，语句对audittrail审计

    C、Oracle不支持对audittrail的审计

    D、在设置audittrail审计前，要保证已经打开Oracle的审计机制


    答案：ABD

  • 第3题：

    当启动一个Oracle实例时,初始化参数()指出为数据文件信息保留的SGA空间的数量。

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  • 第4题：

    Youhavecontrol-fileautobackupsenabled.WhenstartingyourdatabasefromSQL*Plus，youreceivethefollowingerrormessage：SQL>startupORA-01078：failureinprocessingsystemparametersLRM-00109：couldnotopenparameterfile，C：\ORACLE\PRODUCT\11.1.0\DB_1\DATABASE\INITORCL.ORAUsingRMAN，howwouldyourespondtothiserror？（）

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    B.IssuethestartupnomountcommandandthenissuetherestorespfilecommandfromtheRMANprompt.

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    D.Issuethestartupnomountcommandandthenissuetherestorespfilefrombackupcommand from theRMANprompt.

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    参考答案：C

  • 第5题：

    ORACLE初始化参数文件的默认路径是:()

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    B.对于UNIX，在$ORACLE_HOME/dbs/admin

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    参考答案：A

  • 第6题：

    Import for the first three months this year is larger than that for the__________period last year.


    A.relating

    B.concerning

    C.corresponding

    D.regarding

    答案：C
    解析：
    考查词义辨析。句意为“今年前三个月的进口量比上一年同期多”。relating to“相关的”，concerning“关于”，corresponding“相当的，对应的”，regarding“关于；就……而论”。根据句意可知是今年前三个月和去年相对应的前三个月做对比．故选C。

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