第1题
A.Autoroutecausesthetunneltobetreatedasadirectlyconnectedlinktothehead-end.
B.AutoroutecausestheTEhead-endtoestablishIGPadjacencywiththetail-endoverthetunnel.
C.ForwardingadjacencymakestheTEhead-endnodeadvertisetheTunnelLSPintotheIGP.
D.ForwardingadjacencysupportsunequalcostloadbalancingovermultipleTEtunnels.
第2题
A.Domainadvertisements
B.Advertisementrequestsfromclients
C.Subsetadvertisements
D.Summaryadvertisements
第3题
A.205.7.8.32/27
B.191.168.10.2/23
C.127.0.0.1
D.224.0.0.10
E.203.123.45.47/28
F.10.10.0.0/13
第4题
A.ItdoesnotsupportallunderlyingunicastroutingprotocolslikeGBP
B.Itsupportssharedtreesonlyassumingallhostswantthemulticasttraffic
C.ReceiversareregisteredwithRPbytheirfirst-hoprouter
D.ReceiversarejoinedtotheSharedTree(rootedtherp)bytheirlocalDesignatedRouter(DR)
E.FromtheRP,trafficflowsdownaSourceTreetoeachreceiver
第5题
A.TheVLANIDofallknownVLANs,themanagementdomainname,andthetotalnumberoftrunklinksontheswitch.
B.TheVLANIDofallknownVLANs,a1-bitcanonicalformat(CF1Indicator),andtheswitchconfigurationrevisionnumber.
C.Themanagementdomainname,theswitchconfigurationrevisionnumber,theknownVLANs,andtheirspecificparameters.
D.A2-byteTPIDwithafixedvalueof0x8100forthemanagementdomainnumber,theswitchconfigurationrevisionnumber,theknownVLANs,andtheirspecificparameters.
E.Noneoftheotheralternativesapply.
第6题
A.validatesDHCPmessagesreceivedfromuntrustedsourcesandfiltersoutinvalidresponsemessagesfromDHCPservers
B.interceptsallARPrequestsandresponsesonuntrustedports
C.buildsandmaintainstheDHCPsnoopingbindingdatabase,whichcontainsinformationaboutuntrustedhostswithleasedIPaddresses
D.usestheDHCPsnoopingbindingdatabasetovalidatesubsequentrequestsfromuntrustedhosts
E.limitsIPtrafficonaninterfacetoonlythosesourcesthathaveanIP-MACaddressbindingtableentryorstaticIPsourceentry
第8题
A.Multicastaddresses224.0.0.0through224.0.0.255arealwaysforwardedbecausetheyaretransmittedwithTimetoLive(TTL)greaterthan1.
B.Multicastaddresses224.0.0.5and224.0.0.6aresourcemulticastaddressesforOSPFrouters.
C.Multicastaddresses224.0.0.13and224.0.0.22arereservedlink-localaddressesusedbyPIMv2andIGMPv3.
D.BecausetheywouldmaptooverlappingIPmulticastMACaddresses,multicastaddresses224.0.1.1and238.1.1.1couldnotbeusedtogether.
E.Multicastaddress224.0.1.1hasbeenreservedfortheNetworkTimeProtocol(NTP)bytheIANA
F.Theadministrativelyscopedmulticastaddresses239.0.0.0through239.255.255.255aresimilarinpurposetoRFC1918privateunicastaddresses.
第9题
A.servicetimestampslogdatetimecmsec
B.loggingtimestampsmsec
C.syslogtimestampshourminutesecondmiliseconds
D.serviceloggingtimestampmsec
E.loggingservicetimestampmsec
第10题
A.LoopManagementProtocol
B.LabelManagementProtocol
C.LoadManagementProtocol
D.LinkManagementProtocol
E.Noneofabove
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