YouexecutethefollowingcommandtoperformabackupbyusingRecoveryManager(RMAN):RMAN>run{allocatechannelc1typesbtbackupdatafile1}Thecommanderrorsout.Apartoftheerrormessageisasfollows:RMAN03009:failureofallocatecommandonc1channelORA19554:errorallocatingdevice,devicetype:SBT_TAPE,devicename:Whatcouldexplainwhythestatementfailed?()
A.sbtisnotavaliddevicetype.
B.MediaManagementLibrarywasnotloaded.
C.Thesbtdevicecannotbeusedfordatafilebackups.
D.NopathwasdefinedintheALLOCATECHANNELcommand.
E.ThechanneliscurrentlybeingusedbyanotherRMANsession.
第1题:
A.usermanagedcompleterecovery
B.usermanagedincompleterecovery
C.RMAN-basedcompleterecovery
D.RMAN-basedincompleterecovery
第2题:
A.alistofallthosefilesthathavebeendeletedinthelasttwodays
B.alistofallthosefilesthathavebeenrecoveredwithinthelasttwodays
C.alistofalltheexpiredbackupsandcopies
D.alistofbackupsandcopiesthatareoutsidetherangecoveredbythecurrentretentionpolicy
第3题:
1、myDog是Dog类的对象,使用该对象myDog调用run()方法,语句正确的是()。
A.Dog.run();
B.myDog.run();
C.Dog.run;
D.MyDog.run;
第4题:
YouwanttoimplementthebackupandrecoverystrategyinyourdatabaseusingRecoveryManager(RMAN).YouhavechosenthecontrolfileofthetargetdatabasefortheRMANrepository.Whichcommand-lineRMANcommandwouldyouusetoestablishalocalconnectionbetweenRMANandtheRMANrepositoryifyourdatabaseisusingpasswordfileauthentication?()
A.rmanTARGET/NOCATALOG
B.rmanTARGETsys/password
C.rmanTARGETsys/passwordASSYSDBA
D.rmanTARGETsys/password@db_nameCATALOGrman_user/rman_password@rcat
第5题:
A.alistoffilesthatrequireabackupwithinthreedays
B.alistoffilesthathavenotbeenbackedupforthreedays
C.alistoffilesthatRMANrecommendsbebackeduponlyonceineverythreedays,basedonlowvolatility
D.alistoffilesforwhichabackuphasalreadybeenperformedandmayneedabackupafterthreedays