A.take the backup of the flash recovery area less frequ……

单项选择题Youwererecentlyhiredbyanorganizationasadatabaseadministrator.Youareaskedtofindoutwhetherthecurrentlyfunctionallistenerprocess，namedL1，hasbeenpasswordprotectedornot.Youarenotfamiliarwiththefilesystemoftheneworganization.Howwouldyouaccomplishthetask？（）

A.by using the STATUS command of the Listener control utility
B.by using the STATUS L1 command of the Listener control utility
C.by using the SHOW RULES command of the Listener control utility
D.by using the SET PASSWORD command of the Listener control utility
E.by searching for the PASSWORD_LISTENER entry in the listener.ora file

单项选择题Youhavetwolistenerprocesses，namedL1andL2.Boththelistenerprocessesarecurrentlyfunctional.Whileviewingthelistener.orafileonyourdatabaseserver，youfindthefollowingentry：PASSWORDS_L1=（1sanfrjp43）Whatwouldbetheimpactofthissetting？（）

A.The listener process named L1 will disconnect the unauthorized users.
B.The listener process named L1 will be prevented from being started by unauthorized users. 
C.The listener process named L1 will be prevented from being stopped by unauthorized users. 
D.The listener process named L1 will be prevented from being reloaded by unauthorized users.
E.The listener process named L1 will be prevented from accepting connections from unauthorized users.

多项选择题While creating a scheduler window using the DBMS_SCHEDULER package， a user logged in as DBMGR gets the error message insufficient privileges.  Which two commands would you use to resolve this error？（）

A.GRANT dba TO dbmgr;
B.GRANT connect TO dbmgr;
C.GRANT resource TO dbmgr;
D.GRANT hs_admin_role TO dbmgr;
E.GRANT manage scheduler TO dbmgr;

单项选择题In your production database there is a job， CALC_STAT， which has been scheduled to run every Friday at 5：00 p.m. CALC_STAT updates the optimizer statistics for the objects owned by the APPS schema. You want the task to be generic， thereby allowing users to modify the attributes of the task at run time without affecting the original task. Which component of Oracle Scheduler must you define to achieve this？（）

A.Window
B.Program
C.Job class
D.Window group

单项选择题Your business has departmental reports that are generated every day. Each department must use the same set of queries， but accesses a different subset of data in the tables， depending on which department generates the report. The format of the reports is being developed currently， the format changes daily.  How would you configure the database to ensure that each department generates its report （based on its target data） using the most recent report format every day？（）

A.by having each user run the report generation procedure at the scheduled time， supplying the necessary input variables
B.by creating a program using DBMS_JOB that accepts one or more variables， and creating a job that calls this program using DBMS_JOB
C.by having each user schedule a job using DBMS_JOB that accepts one or more input variables and calls a procedure that generates the report
D.by having each user create a job using DBMS_SCHEDULER that includes all the information and commands necessary to generate the report
E.by creating a program using DBMS_SCHEDULER that accepts one or more variables， and creating a job that calls this program using DBMS_SCHEDULER