Which of the following shut down options should not be used before performing a consistent whole database backup？（）

单项选择题WhichofthefollowingcommandscannotusethefunctionalityassosciatedwiththeNLS_DATE_FORMATvariable？（）

A.RESTORE
B.RECOVER
C.REPORT
D.BACKUP

单项选择题WhatisthemaximumnumberofARCnprocessesthatcanbedefinedusingtheinitializationparameterLOG_ARCHIVE_MAX_PROCESSES？（）

A.1
B.5
C.10
D.15
E.Depends on system memory resources

单项选择题Whichbackgroundprocessisresponsibleforwritingthedirtybuffersfromthewritelisttothedatafilesduringacheckpoint？（）

A.CKPT
B.SMON
C.LGWR
D.DBWn
E.ARCn

单项选择题WhichofthefollowingstatementisincorrectregardingRMAN？（）

A.It detects corrupt blocks.
B.It performs only offline database backups.
C.It omits empty blocks during backups.
D.It performs tablespace point-in-time recovery （TSPITR）.

单项选择题Whichofthefollowingfilescanbeusedtoconfigureconnectionpoolinginthesharedserverenvironment？（）

A.INIT.ORA
B.SQLNET.ORA
C.TNSNAMES.ORA
D.SERVICES.ORA
E.LISTENER.ORA