单项选择题
A.Hot backup
B.Online backup
C.consistent backup
D.incremental backup
E.inconsistent backup
单项选择题 You work as a database administrator for Certkiller .com. You enabled tracing while creating a listener to your database. What additional information is available to you when you enable tracing？（）
单项选择题 YouworkasadatabaseadministratorforCertkiller.com.IntheCertkillerPRODUCTIONdatabaseyouhavegrantedRESUMABLEsystemprivilegetotheCONNECTrole.Resumablespaceoperationhasbeenenabledforallusersession.YouwantusersNOTtobeawareofanykindofspace-relatedproblemswhileperformingtransactions.Instead，youwanttheproblemtoberesolvedbyadatabasetriggerautomatically.Whichcombinationoftriggeringtimeandeventwouldyouusetoachievethisobjective？（）
单项选择题 YouworkasadatabaseadministratorforCertkiller.com.YouwanttobenotifiedwhenthenumberofdiskI/Oincreasesby10%ofwhatitwasyesterday.Youcreateabaselinemetricforyesterday’sdiskI/Operformance.Howdoyouusethebaselinemetricstoachieveyourobjective？（）