单项选择题

Ifabackupisexpired，whichofthefollowingistrue？（）

A.Itcanneverbeusedforarestore/recoveroperation.
B.Oraclewillremovethebackupsetpiecesfromtheflashrecoveryarea.
C.Thebackuphasbeenusedatleastoncetorestoreandrecoverthedatabase.
D.Thebackupisnolongervalidbecauseofaresetlogsoperation.
E.Thephysicalbackupsetpiecesaremissingfromthemedia.

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热门试题

单项选择题Whichcommandwillresultinatracefilebeingcreatedwiththecreatecontrolfilecommandcontainedinit？（）

A.alterdatabasebackupcontrolfile
B.alterdatabasebackupcontrolfiletotrace
C.alterdatabasecontrolfilebackup
D.alterdatabasecontrolfilebackupto’/ora01/oracle/ctrl_backup.ctl’
E.alterdatabasebegincontrolfilebackup

单项选择题（）个变量的地址称为该变量的“指针”。

A.1
B.2
C.3
D.4

单项选择题Becauseofhardwarefailure，youdecidedtodroparedologmemberfromthedatabase.Whichconditionshouldbemettodroparedologfile？（）

A.Theredologfileshouldbelongtoanactivegroup.
B.Theredologfileshouldbelongtoaninactivegroup.
C.Theredologfileshouldbelongtothecurrentgroup.
D.Theredologfilecanbedroppedonlyifallthetransactionsarestopped.
E.Beforearedologfileisdropped，itshouldbedeletedfromtheoperatingsystem（OS）.

单项选择题WhatdoestheFastConnectionFailoverfeatureofActiveGridLinkforRACprovide?（）

A.instantnotificationofaRACnodefailuresoapplicationsneverhavetoretryatransactionthatwassenttoanodethatfailedduringthetransaction
B.near-instantnotificationofthefailureofaRACnodefailurethatminimizesthepossibilityconnectiontoafailednodebeingprovidedtoanapplication
C.applicationlevelnotificationofafailedRACnodesuchthatanapplicationcanretryatransactionifrequired
D.fasterfailoverforMultiDatasources
E.guaranteedtransactionhighavailabilitywheninteractingwithanOracleRACDatabase

单项选择题YouobservethatinyourPRODdatabase，customerinformationisbeingmodifiedbysomeunauthorizedusers.YouwanttokeeptrackofallofthetransactionshappeningonthetableusingPL SQL.WhichtypeofPL SQLsubprogramorconstructwouldyouusetoaccomplishthistask？（）A.functionsB.packagesC.proceduresD.databasetriggersE.anonymousPL SQLblock

A.YouwanttokeeptrackofallofthetransactionshappeningonthetableusingPL/SQL.WhichtypeofPL/SQLsubprogramorconstructwouldyouusetoaccomplishthistask？（）
A.functions
B.packages
C.procedures
D.databasetriggers
E.anonymousPL/SQLblock