采用随机模式控制现金持有量，计算现金返回线的各项参数中不包括（)。A．每次现金与有价证券转换时

A.RMAN’spowerfulcommandlanguage.

B.RMANbackupscanbeparallelized.

C.RMANallowsforincrementalblock-levelbackups.

D.RMANbackup，restore，andrecoveryscriptscanbestored.

AUNIXusernamedBobwantstoreplacehischessprogramwithanewone，butheisnotsurewheretheoldoneisinstalled.BobiscurrentlyabletorunaJavachessprogramstartingfromhishomedirectory/home/bobusingthecommand：java-classpath/test：/home/bob/downloads/*.jargames.ChessBob’sCLASSPATHisset（atlogintime）to：/usr/lib：/home/bob/classes：/opt/java/lib：/opt/java/lib/*.jarWhatisapossiblelocationfortheChess.classfile？（）

A./test/Chess.class

B./home/bob/Chess.class

C./test/games/Chess.class

D./usr/lib/games/Chess.class

E./home/bob/games/Chess.class

Assumeyoursituationcanbedescribedasfollows：xAfullbackuptakenusingRMANisavailableondisk.xThecurrentcontrolfileswereNOTdamagedanddonotneedtoberestored.xAlldatafilesaredamagedorlost.xThedatabaseisinNOARCHIVELOGmode.WhichRMANcommandwouldbemostappropriatetouseinline3ofthefollowingRMANcommandsettorestoreandfullyrecoveryourdatabase？（）1.RMAN>STARTUPMOUNT2.RMAN>RESTOREDATABASE;3.RMAN>（）4.RMAN>ALTERDATABASEOPEN;

A.RECOVERDATABASE；

B.SWITCHDATAFILEALL；

C.RESTORECONTROLFILE；

D.RECOVERDATABASEUSINGBACKUPCONTROLFILE；

A.RCO1only.

B.DB01only.

C.DB02only.

D.DB01andDB02only.

E.DB01，DB02，andRC01.

Thedatabaseisconfiguredforautomaticarchivelogging.Alongwiththeotherrequiredparameters，thisentryisintheinitializationfile：log_archive_dest2="SERVICE=standby_db1MANDATORYREOPEN=600"Fromwheredoesthedatabaseresolvestandby_db1？（）

A.controlfile

B.tnsnames.ora

C.datadictionary

D.initializationparameterfile

RMANautomaticallypropagateinformationaboutthedatabasestructure，archivedredologs，backupsets，anddatafilecopiesintotherecoverycatalogfromthetargetdatabase’scontrolfile.Thisinformationcanalsobepropagatedtothecatalogmanuallybyusingthe（）command.

A.LIST

B.SWITCH

C.VALIDATE

D.CONFIGURE

E.RESYNCCATALOG

F.UPGRADECATALOG

A.Noneoftheseobjectsareeligibleforgarbagecollection.

B.Onlytheobjectreferencedbyboochiseligibleforgarbagecollection.

C.Onlytheobjectreferencedbysnoogiseligibleforgarbagecollection.

D.Onlytheobjectreferencedbysnoochiseligibleforgarbagecollection.

E.Theobjectsreferencedbysnoochandboochareeligibleforgarbagecollection.

A.Onlinebackups.

B.Skippingunusedblock.

C.Partialdatabasebackups.

D.Incrementalblock-levelbackup.

E.Detectionofcorruptedblocksduringbackup.

A.WHEN

B.INFILE

C.CONTINUEIF

D.CONCATENATE

E.TRAILINGNULLCOLS

ER_DATAtablespacesisstored.Thedatabaseiscurrentlyopenandyouneedtorecoverthedatafiles.YouwillrestorethedatafilestoDISK2.WhatisthecorrectsequenceofRMANcommandstorestoreandrecoverthedatafiles？（）

A.A

B.B

C.C

D.D