计算机水平考试-网络管理员分类模拟题计算机专业英语(二)

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1、单项选择题Traditionalnetworklayerpacketforwardingreliesontheinformationprovidedbynetworklayerprotocols,orstaticrouting,tomakeanindependentdecisionsateachhopwithinthenetwork.TheforwardingisbasedsolelyonthedestinationIPaddress.Allpacketsforthesamedestinationfollowthesamepathacros

2、sthenetworkifnootherequal-costpathsexist.Wheneverarouterhastwoequal-costtowardadestination,thepacketstowardthedestinationmighttakeoneorbothofthem,resultinginsomedegreeofloadsharing・1、A.rotatingB•routingC.transmissionD•management2^A.forwardingB•connectingC.routingD.killing3

3、A.connectingdestinationB•windowC・decisionD.4、A.anycastB•multicastC•broadcastD•unicast5^A.pathsB・statesC.systemsD.connectionsAmanagementdomaintypicallycontainsalargeamountofmanagementinformation•Eachindividualitemofinformationisaninstanceofamanagedobjecttype

4、arelatedsetofmanagedtypesiscontainedinaManagementInformationBase(MIB.module•ManysuchMIBmodulesaredefined•Foreachmanagedobjecttypeitdescribes,aMIBdefinesnotonlythesemanticsandsyntaxofthatmanagedobjecttype,butalsothemethodofidentifyinganindividualinstancesothatmultipleofthes

5、amemanagedobjecttypecanbedistinguished・Typically,thereareinstancesofeachmanagedobjectwithinamanagementdomain.6、A.rotationB.switchC•managementD•transmission7、A.pathB.objectC.routeD•packet8、A.connectionB•windowC.moduleD•destination9、A.packetsB•searchesC

6、.deviceB.stateC•typeD•packetWehavealreadycoveredthetopicofnetworkaddresses.Thefirstinablock(inclassA,B,andC・definesthenetworkaddress

7、willacceptapackethavingthistypeofdestinationaddress.NotethatthisaddresscanbeusedonlyasaaddressinanIPpacket•NotealsothatthisspecialaddressalsoreducesthenumberifavailablehostedforeachnetidinclassesA,B,andC

8、eaaddressinthecurrentnetwork•Ahostthatwantstosendamessagetoeveryotherhostscanusethisaddre