InwhichsituationsdoestheOracleDataPumpuseexternaltablesandnotthedirectpathloadwhileexportingatable（）
A. ifatableisnotinacluster
B. ifatablehasanactivetrigger
C. ifatablehasanencrypted
D. ifatablehasacolumnofdatatypeLONGdefinedonit
E. ifatablehasareferentialintegrityconstraintdefinedonit
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Youwanttoperformabackupofyourdatabasetotape.Whichbackupformatcanyouuse？（）
A. backupsetonly
B. imagecopyonly
C. onlyuser-managedbackup
D. bothimagecopyandbackupset
E. onlyincrementalimagecopybackup
Given：11.Stringtest="Thisisatest"；12.String[]tokens=test.split（"\s"）；13.System.out.println（tokens.length）；Whatistheresult？（）
Anexceptionisthrownatruntime.
B. 1
C. 4
D. Compilationfails.
E. 0
Youneedtoaddapop-upmenutotheCV_EMPcanvastodisplaywhenauserright-clicksthemousewithinthecanvas.Howcouldyoucreatethepop-upmenu？（）
A. UsetheLayoutEditortocreateapop-upmenu,assigncommandstothemenuintheMenuEditor,andattackthemenuitemstothecanvas.
B. UsetheReportWizardtocreateapop-upmenuandattackthemenuitemstothecanvas.
C. Alterthepop-upMenuPropertyvalueinthePropertyPaletteofthecanvas.
D. UsetheObjectNavigatortocreateapop-upmenu,assigncommandstothemenuitems,andattackthemenutoitemsorcanvases.
Inyourdatabase，UNDO_RETENTIONhasbeensetto600secandUNDOtablespaceisconfiguredforRETENTIONGUARANTEE.WhichstatementregardingRETENTIONGUARANTEEistrue？（）
A. Undodataisretaineduntilthenextfulldatabasebackup.
B. Nocommittedundodatawillbeoverwrittenfor10minutes.
Committedundodatawillbekeptforeverifnotoverwrittenwithin600seconds.
D. Guaranteesthatrequestedundoinformationareavailableuntiltheinstanceisshutdown.
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