Which three mechanisims support the forwarding plane of a Layer 3 VPN in JUNOS software? () A. MPLS LSPB. ATM tunnelC. GRE tunnelD. IPSEC tunnelE. L2TPv3 session
Which three mechanisims support the forwarding plane of a Layer 3 VPN in JUNOS software? ()
A. MPLS LSP
B. ATM tunnel
C. GRE tunnel
D. IPSEC tunnel
E. L2TPv3 session
相关考题：
Acknowledgements, sequencing, and flow control are functions that are handled by which layer of the OSI model?A. Layer 5B. Layer 4C. Layer 7D. Layer 6E. Layer 3F. Layer 2G. Layer 1
When an IP packet is Layer 3－switched from a source in one VLAN to a destination in another VLAN,which field in a packet will be rewritten? () A. Layer 2 TTLB. Layer 3 TTLC. Layer 3 source addressD. Layer 3 transport protocolE. Layer 3 destination address
WhichdeployedVoWLANclientsecurityoptionisrecommendedbyCisco?() A.Layer3withLayer3SecuritysettoNoneandWebPolicysettoAuthenticationB.Layer3withLayer3SecuritysettoNoneandWebPolicysettoVPNPass-ThroughC.Layer3withLayer3SecuritysettoVPNPass-ThroughD.Layer2withLayer2Securitysetto802.1X
Atacertaincustomer’ssite,aNASisbothphysicallyandlogicallyinthetrafficpath.TheNAS identifiesclientssolelybasedontheirMACaddresses.InwhichaccessmodehasthisNASbeen configuredtooperate?() A.Layer2modeB.Layer3EdgemodeC.Layer3CentralmodeD.Layer3In-Bandmode
WhichheaderorsetofheadersdoesCRTPcompress?() A.Layer2B.Layer3C.Layer4D.Layer2andLayer3E.Layer3andLayer4
Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?() A. Layer 2B. Layer 3C. Layer 4D. Layer 5E. Layer 6F. Layer 7
WhenyoudesignQoSonCEforanMPLSLayer2VPN,whichthreethingsshouldbeconsidered?() A.Layer2accesslinkQoSdesignB.enterprise-to-service-providermappingmodelsC.Layer3linkaccessQoSdesignD.serviceproviderservicelevelagreementsE.Layer2linkaccessloadbalancing
TheOSPFRFC3623GracefulRestartfeatureallowsyoutoconfigureIETFNSFinultivendornetworks.WhenusingOSPFGracefulRestart,whichmechanismisusedtocontinueforwardingpacketsduringaswitchover?() A.ReversePathForwardingB.Hardware-basedforwardingC.UDPforwardingD.Layer2Forwarding
WhicharethreeadvantagesofPPPoAimplementation?() A.NAPandNSPprovidesecureaccesstocorporategatewayswithoutmanagingend-to-endPVCs.NAPandNSPuseLayer3routing，Layer2Forwarding，orLayer2TunnelingProtocoltunnels.Hence，theycanscaletheirbusinessmodelsforsellingwholesaleserviceB.TheNSPcanoversubscribebydeployingidleandsessiontimeoutsusinganindustrystandard RADIUSserverforeachsubscriberC.OnlyasinglesessionperCPEononevirtualchannel （VC).Theusernameandpasswordare configuredontheCPE，soallusersbehindtheCPEforthatparticularVCcanaccessonlyonesetofservices.Userscannotselectdifferentsetsofservices，althoughusingmultipleVCsandestablishing differentPPPsessionondifferentVCsispossibleD.IfasingleIPaddressisprovidedtotheCPE，andNATorPATisimplemented，certain applications suchasIPTV，whichembedIPinformationinthepayload，wellnotwork.Additionally，ifanIP subnet featureisused，anIPaddressalsohastobereservedfortheCPEE.PPPoAcanusethefeaturesontheCiscoServiceSelectionGateway（SSG）
Acknowledgements,sequencing,andflowcontrolarecharacteristicsofwhichOSIlayer?() A.Layer2B.Layer3C.Layer4D.Layer5E.Layer6F.Layer7