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

题目
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

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1.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

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3.Atacertaincustomer’ssite,aNASisbothphysicallyandlogicallyinthetrafficpath.TheNAS identifiesclientssolelybasedontheirMACaddresses.InwhichaccessmodehasthisNASbeen configuredtooperate?()A.Layer2modeB.Layer3EdgemodeC.Layer3CentralmodeD.Layer3In-Bandmode

4.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

更多“Which three mechanisims support the forwarding plane of a Layer 3 VPN in JUNOS software? () ”相关问题

  • 第1题：

    WhichheaderorsetofheadersdoesCRTPcompress?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer2andLayer3

    E.Layer3andLayer4


    参考答案：E

  • 第2题：

    WhenyoudesignQoSonCEforanMPLSLayer2VPN,whichthreethingsshouldbeconsidered?()

    A.Layer2accesslinkQoSdesign

    B.enterprise-to-service-providermappingmodels

    C.Layer3linkaccessQoSdesign

    D.serviceproviderservicelevelagreements

    E.Layer2linkaccessloadbalancing


    参考答案：A, B, D

  • 第3题：

    WhicharethreeadvantagesofPPPoAimplementation?()

    A.NAPandNSPprovidesecureaccesstocorporategatewayswithoutmanagingend-to-endPVCs.NAPandNSPuseLayer3routing，Layer2Forwarding，orLayer2TunnelingProtocoltunnels.Hence，theycanscaletheirbusinessmodelsforsellingwholesaleservice

    B.TheNSPcanoversubscribebydeployingidleandsessiontimeoutsusinganindustrystandard RADIUSserverforeachsubscriber

    C.OnlyasinglesessionperCPEononevirtualchannel （VC).Theusernameandpasswordare configuredontheCPE，soallusersbehindtheCPEforthatparticularVCcanaccessonlyonesetofservices.Userscannotselectdifferentsetsofservices，althoughusingmultipleVCsandestablishing differentPPPsessionondifferentVCsispossible

    D.IfasingleIPaddressisprovidedtotheCPE，andNATorPATisimplemented，certain applications suchasIPTV，whichembedIPinformationinthepayload，wellnotwork.Additionally，ifanIP subnet featureisused，anIPaddressalsohastobereservedfortheCPE

    E.PPPoAcanusethefeaturesontheCiscoServiceSelectionGateway（SSG）


    参考答案：A, B, E

  • 第4题：

    Acknowldgement, Sequencing, and Flow control are characteristics of which OSI layer?()

    A. Layer 2

    B. Layer 3

    C. Layer 4

    D. Layer 5

    E. Layer 6

    F. Layer 7


    参考答案：C

  • 第5题：

    TheOSPFRFC3623GracefulRestartfeatureallowsyoutoconfigureIETFNSFinultivendornetworks.WhenusingOSPFGracefulRestart,whichmechanismisusedtocontinueforwardingpacketsduringaswitchover?()

    A.ReversePathForwarding

    B.Hardware-basedforwarding

    C.UDPforwarding

    D.Layer2Forwarding


    参考答案：B

  • 第6题：

    Acknowledgements,sequencing,andflowcontrolarecharacteristicsofwhichOSIlayer?()

    A.Layer2

    B.Layer3

    C.Layer4

    D.Layer5

    E.Layer6

    F.Layer7


    参考答案：C

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