单选题Which of the following tasks is not performed by the job coordinator?（）A Update job log when a job completesB Spawn and remove job slavesC Write/read job info to/from memory cacheD Query job tableE Pass job information to job slaves

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第2题：

While creating a job class using the DBMS_SCHEDULER package， you set the logging level to LOGGING_RUNS. What would be the impact of this setting？（）

• A、 Oracle Scheduler would write detailed information to the job log for each run of each job in the job class.
• B、 Oracle Scheduler would write detailed information to the job log for the first run of each job in the job class.
• C、 Oracle Scheduler would write detailed information to the job log for each run of only the first job in the job class.
• D、 Oracle Scheduler would write detailed information for all operations performed on all jobs in the job class.

第3题：

Consider the following code snippet：   BEGIN  DBMS_SCHEDULER.SET_ATTRIBUTE （ name => ，，lne_job1， attribute => ，，job_priority， value => 1）；  END；  /   If this code were executed， which of the following statements would be true？（）

• A、 The priority of the lne_job1 job would be set to 1.
• B、 The lne_job1 job would be executed synchronously.
• C、 The lne_job1 job would run immediately in the users current session.
• D、 The lne_job1 job would retain its current priority.
• E、 The job will immediately take priority over all running jobs.

第4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

第5题：

You want to view the name of a program associated with a job for making some changes to the program. Which view will you query to find the name of the program associated with the job？（）

• A、 DBA_SCHEDULER_JOB_RUN_DETAILS
• B、 DBA_SCHEDULER_RUNNING_JOBS
• C、 DBA_SCHEDULER_JOBS
• D、 DBA_SCHEDULER_JOB_LOG

第6题：

User SCOTT executes the following command on the EMP table but has not issued COMMIT， ROLLBACK，or any data definition language （DDL） command：  SQL> SELECT job FROM emp  2  WHERE job=’CLERK’ FOR UPDATE OF empno;  SCOTT has opened another session to work with the database. Which three operations would wait when issued in SCOTT’s second session？（）

• A、LOCK TABLE emp IN SHARE MODE;
• B、LOCK TABLE emp IN EXCLUSIVE MODE;
• C、DELETE FROM emp WHERE job=’MANAGER’;
• D、INSERT INTO emp（empno，ename） VALUES （1289，’Dick’）;
• E、SELECT job FROM emp WHERE job=’CLERK’ FOR UPDATE OF empno;

第7题：

列出EMP表中，从事每个工种（JOB）的员工人数（）

• A、select job from emp;
• B、select job,count(*) from emp;
• C、select distinct job,count(*) from emp;
• D、select job,count(*) from emp group by job;
• E、select job,sum(empno) from emp group by job;

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第14题：

You want to purge job entries older than 5 days from the job log. You do not want to purge window log entries. Which command will you use to accomplish this task？（）  

• A、 EXECUTE DBMS_SCHEDULER.PURGE_LOG（log_history => 5， job_name => ’JOB1’）；
• B、 EXECUTE DBMS_SCHEDULER.PURGE_LOG（ log_history => 5， job_name => ’JOB_LOG’）；
• C、 EXECUTE DBMS_SCHEDULER.PURGE_LOG（ log_history => 5， which_log => ’JOB1’）；
• D、 EXECUTE DBMS_SCHEDULER.PURGE_LOG（ log_history => 5， which_log =>’JOB_LOG’）；

第15题：

When a job exceeds the date specified in its END_DATE attribute, which of the following will happen?（）

• A、The job will be dropped automatically if the value of the AUTO_DROP attribute is TRUE
• B、The job will only be disabled if the value of the AUTO_DROP attribute is FALSE
• C、The STATE attribute of the job will be set to COMPLETED if the value of the AUTO_DROP attribute is FALSE
• D、All objects referenced by the job will be dropped if the value of the AUTO_DROP attribute is TRUE and the value of the CASCADE attribute is TRUE
• E、The STATE column of the job table will be set to COMPLETED for the job

第16题：

Which of the following tasks is not performed by the job coordinator?（）

• A、Update job log when a job completes
• B、Spawn and remove job slaves
• C、Write/read job info to/from memory cache
• D、Query job table
• E、Pass job information to job slaves

第17题：

You notice that the elapsed time for an important database scheduler Job is unacceptably long. The job belongs to a scheduler job class and window. Which two actions would reduce the job's elapsed time?（）

• A、Increasing the priority of the job class to which the job belongs
• B、Increasing the job's relative priority within the Job class to which it belongs
• C、Increasing the resource allocation for the consumer group mapped to the scheduler job's job class within the plan mapped to the scheduler window
• D、Moving the job to an existing higher priority scheduler window with the same schedule and duration
• E、Increasing the value of the JOB_QUEUE_PROCESSES parameter
• F、Increasing the priority of the scheduler window to which the job belongs

第18题：

William is creating a job class. William specifies the LOGGING_FULL setting for the LOGGING_LEVEL attribute at the time of job class creation. What is the impact of using this setting？（）  

• A、 Detailed information regarding the first run of each job in the class will be written in the job log， and every operation performed on the job class will be logged.
• B、 Detailed information regarding each run of only the first job in the class will be written in the job log， and every operation performed on the job class will be logged.
• C、 Detailed information regarding each run of each job in the class will be written in the job log， and every operation  performed on the job class will be logged.
• D、 Detailed information regarding each run of each job in the class will be written in the job log， but operations performed on the job class will not be logged.

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