Amanagementdomaintypicallycontainsalargeamountofmanagementinformation.Eachindividualitemof(71)informationisaninstanceofamanagedobjecttype.Thedefinitionofarelatedsetofmanaged(72)typesiscontainedinaManagementInformationBase(MI B)module.ManysuchMIBmodulesaredefined.Foreachmanagedobjecttypeitdescribes,aMIB(73)definesnotonlythesemanticsandsyntaxofthatmanagedobjecttype,butalsothemethodofidentifyinganindividualinstancesothatmultiple(74)ofthesamemanagedobjecttypecanbedistinguished.Typically,therearemanyinstancesofeachmanagedobject()withinamanagementdomain
A.device B.state C.type D.packet正确答案C
