A.Configuretheapplicationmonitorwitharestartcountof0 B.ConfiguretheapplicationmonitorwithamonitormodeofNotify C.ConfiguretheapplicationmonitorwithanotifymethodofMonitor D.ConfiguretheapplicationmonitorwithafailureactionofNotify
顾客观察法(名词解释)
Adeveloperhasusedthiscodewithinaservlet:62.if(request.isUserInRole("vip")){63.//VIP-relatedlogichere64.}Whatelsemustthedeveloperdotoensurethattheintendedsecuritygoalisachieved?()
A.Createausercalledvipinthesecurityrealm B.Defineagroupwithinthesecurityrealmandcallitvip C.Defineasecurity-rolenamedvipinthedeploymentdescriptor D.Declareasecurity-role-refforvipinthedeploymentdescripto
Ifabackupisexpired,whichofthefollowingistrue?()
A.Itcanneverbeusedforarestore/recoveroperation. B.Oraclewillremovethebackupsetpiecesfromtheflashrecoveryarea. C.Thebackuphasbeenusedatleastoncetorestoreandrecoverthedatabase. D.Thebackupisnolongervalidbecauseofaresetlogsoperation. E.Thephysicalbackupsetpiecesaremissingfromthemedia.
给温室内送2m/s以上的大风,有助于作物产量的提高。()
是 否
机动法作静定结构内力影响线的依据是()
A、刚体体系虚力原理 B、变形体的虚功原理 C、刚体体系的虚位移原理 D、变形体虚位移原理