单项选择题 Inyourdatabase，youmaybeforcedtoperformarecoveryusingtheRESETLOGSoptionduringwhichtheredologswouldberesettosequencenumber1.Youwanttoavoidtheoverwritingofoldlogfiles.Whicharchivedlogfilenameformatensuresthis？（）A.%t_%s.dbfB.arch_%t.arcC.arch_%d.arcD.arch_%t_%d.arcE.arch_%d_%s_.dbfF.arch_%t_%s_%r.arc

单项选择题 Verysoonyouwillbeperformingmaintenanceoperations.Youwouldhaveseveraljobstorunassoonasthemaintenanceperiodstarts.Whichmethodwouldyouusetocreatejobswithoutspecifyingthetimeperiodwhenthejobshouldberun？（）

单项选择题 Youspecifiedextentmanagementaslocalforatablespace.Howwillitaffectspacemanagementinthetablespace？（）