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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

单项选择题Evaluatethefollowingfunctioncode：CREATEFUNCTIONget_dept_avg（dept_idNUMBER）RETURNNUMBERRESULT_CACHERELIES_ON（EMPLOYEES）ISavgsalNUMBER（6）；BEGINSELECTAVG（SALARY）INTOavgsalFROMEMPLOYEESWHEREDEPARTMENT_ID=dept_id；RETURNavgsal；ENDget_dept_avg；Whichstatementistrueregardingtheabovefunction？（）A.ThecachedresultbecomesinvalidwhenanystructuralchangeisdonetotheEMPLOYEEStable.B.Ifthefunctionexecutionresultsinanunhandledexception，theexceptionresultisalsostoredinthecache.C.Eachtimethefunctionisinvokedinadifferentsession，thecurrentresultintheresultcachegetsoverwritten.D.Ifthefunctionisinvokedwithadifferentparametervalue，theexistingresultintheresultcache getsoverwrittenbythelatestvalue.

A.ThecachedresultbecomesinvalidwhenanystructuralchangeisdonetotheEMPLOYEEStable.
B.Ifthefunctionexecutionresultsinanunhandledexception，theexceptionresultisalsostoredinthecache.
C.Eachtimethefunctionisinvokedinadifferentsession，thecurrentresultintheresultcachegetsoverwritten.
D.Ifthefunctionisinvokedwithadifferentparametervalue，theexistingresultintheresultcache

单项选择题YouconfiguredthelargepoolforOraclebackupandrestoreoperations.Asaresult，whichcomponentwouldrequirelessmemory？（）

A.streamspool
B.sharedpool
C.logbuffer
D.keepbuffercache
E.recyclebuffercache

单项选择题Thesalesreportneedstodisplaythesalespersonwiththehighestordertotal.Whichbuildreportbuildercomponentwouldyouusetocreateaplaceholdercolumntodisplaythevalue?（）

A.Reportwizard.
B.Layoutmodel.
C.Datamodel.
D.Lifepreviewer.

单项选择题TheDB_BLOCK_CHECKINGinitializationparameterissettoFALSE.Whatlevelofblockcheckingwouldbeperformed？（）

A.TheOracledatabasewillnotperformblockcheckingforanyofthedatablocks.
B.TheOracledatabasewillperformblockcheckingforthedefaultpermanenttablespaceonly.
C.TheOracledatabasewillperformblockcheckingforthedatablocksinallusertablespaces.
D.TheOracledatabasewillperformblockcheckingforthedatablocksintheSYSTEMtablespaceonly.
E.TheOracledatabasewillperformblockcheckingforthedatablocksintheSYSTEMandSYSAUXtablespaces.

单项选择题您有一台运行WindowsVista的计算机。您在计算机的新分区上安装Windows7。您需要确保计算机总是在默认状态下启动WindowsVista。您应该怎么办？（）

A.运行Bcdedit.exe并指定/default参数
B.运行Bcdedit.exe并指定/bootems参数
C.在Windows7分区的根目录中创建boot.ini文件
D.在WindowsVista分区的根目录中创建boot.ini文件