Which of the following are valid program types for a lightweight job?()A. PLSQL_BLOCK PLSQLB. EXECUTABLEC. JAVA_STORED_PROCEDURED. STORED_PROCEDUREE. EXTERNAL

题目
Which of the following are valid program types for a lightweight job?()

A. PLSQL_BLOCK PLSQL

B. EXECUTABLE

C. JAVA_STORED_PROCEDURE

D. STORED_PROCEDURE

E. EXTERNAL


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更多“Which of the following are valid program types for a lightweight job?() ”相关问题
  • 第1题:

    Which view shows all valid values for the NLS_LANGUAGE, NLS_SORT, NLS_TERRITORY,and NLS_CHARACTERSET parameters?()

    A. V$VALID_NLS_VALUES

    B. NLS_VALID_VALUES

    C. NLS_VALUE_OPTIONS

    D. V$NLS_VALUE_OPTIONS

    E. V$NLS_VALID_VALUES


    参考答案:E

  • 第2题:

    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

    C. WINDOW_LOG_RETENTION

    D. WHICH_LOG

    E. LOG_NAME


    参考答案:A, D

  • 第3题:

    某单道批处理系统中有四个作 JOBl、JOB2、JOB3、JOB4,它们到达“输入井”的时刻和所需要的运行时间如下表所示。

    作业 进入系统时间 估计运行时间(分钟)

    JOB1 8:30 80

    JOB2 8:50 20

    JOB3 9:20 40

    JOB4 9:30 35

    假设9:30开始作业调度,按照最高响应比作业优先算法,首先被调度的作业是______。

    A.JOB1

    B.JOB2

    C.JOB3

    D.JOB4


    正确答案:B

  • 第4题:

    Youwanttopurgejobentriesolderthan5daysfromthejoblog.Youdonotwanttopurgewindowlogentries.Whichcommandwillyouusetoaccomplishthistask?()

    A.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,job_name=>’JOB1’);

    B.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,job_name=>’JOB_LOG’);

    C.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,which_log=>’JOB1’);

    D.EXECUTEDBMS_SCHEDULER.PURGE_LOG(log_history=>5,which_log=>’JOB_LOG’);


    参考答案:D

  • 第5题:

    When setting arguments for a job, which procedure do you use for types that cannot be implicitly converted to and from a VARCHAR2 datatype?()

    A. SET_JOB_ARGUMENT_VALUE

    B. SET_JOB_VALUE_ANYDATA

    C. SET_JOB_ANYDATA_VALUE

    D. SET_SPECIAL_JOB_VALUE

    E. SET_JOB_ANYTYPE_VALUE


    参考答案:C

  • 第6题:

    设有一组作业,它们的作业提交时刻及估计运行时间如下所示: 作业号 提交时刻 估计运行时间(分钟) Job1 8:30 70 Job2 9:10 30 Job3 9:30 15 Job4 9:50 5 在单道批处理方式下,采用短作业优先调度算法,作业的执行顺序为

    A.Job1,Job4,Job3,Job2

    B.Job1,Job3,Job4,Job2

    C.Job4,Job3,Job2,Job1

    D.Job4,Job1,Job2,Job3


    正确答案:B
    解析:本题考查短作业优先调度算法的概念。短作业(进程)优先调度算法是指对短作业或短进程优先调度的算法。它们可以分别用于作业调度和进程调度。短作业优先调度算法,是从后备队列中选择一个或若干个估计运行时间最短的作业,将它们调入内存运行。而短进程优先调度算法,则是从就绪队列中选出一估计运行时间最短的进程,将处理机分配给它,使它立即执行并一直执行到完成,或发生某事件而被阻塞放弃处理机时,再重新调度。进程首先执行的是Job1,该作业到9:40完成,此时Job2和Job3在等待队列中,按照短作业调度算法,此时执行Job3。Job3在10:10,此时等待队列中有Job2和Job4作业,此时执行Job4,最后执行Job2。正确答案为选项B。