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Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）
- A、MPLS TE FR
- B、MPLS VPN
- C、BFD
- D、RSVP
- E、VPLS
- F、SNMP
参考答案
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Which two of these are characteristics of MPLS VPNs?()
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Whichofthefollowingtechnologiescanimproveconvergencetimefollowingalinkfailureinaserviceprovidernetwork?()
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Which two of these are characteristics of MPLS VPNs？ （）A、 Layer 3 MPLS VPNs can forward only IP packetsB、 Layer 2 MPLS VPNs can forward any network protocolC、 MPL S label paths are automatically formed based on Layer 2 framesD、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE、 In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policies
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In which three network technologies is traffic shaping used to prevent and manage congestion？ （）A、Asynchronous Transfer Mode （ATM）B、data-link switching （DLSw）C、Route Processor Redundancy （RPR）D、Frame Relay （FR）E、Metro EthernetF、Multiprotocol Label Switching （MPLS）
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Which of the following IOS features can prevent IP spoofing attacks？（）A、PPP over EthernetB、Cisco Express forwardingC、MPLS traffic EngineeringD、IS-IS routingE、Unicast Reverse Path Forwarding（uRPF）
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Which of the following events can NOT be tuned via router configuration to provide for faster convergencefollowing a link failure？（）A、Failure detectionB、Failure reportingC、IGP LSP/LSA originatioD、Per-hop flooding time of new link stateE、Number of hops that need to be notified of new link state
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Which two of these are characteristics of MPLS VPNs?（）A、Layer 3 MPLS VPNs can forward only IP packetsB、Layer 2 MPLS VPNs can forward any network protocolC、MPLS label paths are automatically formed based on Layer 2 framesD、Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 framesE、In Layer 2 MPLS VPNS, the service provider controls the customer Layer 3 policies
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Which three statements about MPLS traffic engineering （MPLS TE） are true？ （）A、MPLS TE supports admission controlB、MPLS TE tunnel traffic is a link attribute to compute the TE tunnel pathC、MPLS TE uses BGP extension to advertise link attributesD、MPLS TE provides protection capabilityE、MPLS TE uses RSVP to establish LSP
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When configured. MPLS can increase routing redundancy by providing which of the following network topology types?（）A、BusB、MeshC、MultipathD、Ring
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Which of the following technologies was designed to provide the FASTEST data rates over analog phone lines?（）A、RADSLB、SONETC、ADSLD、MPLS
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单选题Which of the following events can NOT be tuned via router configuration to provide for faster convergencefollowing a link failure？（）A
Failure detectionB
Failure reportingC
IGP LSP/LSA originatioD
Per-hop flooding time of new link stateE
Number of hops that need to be notified of new link state
考题
单选题In MPLS networks, what s the benefit of disabling TTL propagation?（）A
To provide a visible extension of MPLS TTL functionality in a non MPLS-enabled domainB
To improve the IGP convergence timeC
To hide visibility to the core (provider) routers in the MPLS networkD
To provide a visible extension of IP TTL functionality in an MPLS-enabled domain
考题
单选题You are about to design a very fast convergence time on a service provider network. Which feature wouldyou utilize to declare a link failure within less than two seconds of the fault on a link？（）A
fast convergence SFPB
MTU discoveryC
redundancy linksD
keepaliveE
carrier delay
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多选题In which three network technologies is traffic shaping used to prevent and manage congestion？ （）AAsynchronous Transfer Mode （ATM）Bdata-link switching （DLSw）CRoute Processor Redundancy （RPR）DFrame Relay （FR）EMetro EthernetFMultiprotocol Label Switching （MPLS）
考题
单选题Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）A
MPLS TE FRB
MPLS VPNC
BFDD
RSVPE
VPLSF
SNMP
考题
多选题Which three statements about MPLS traffic engineering （MPLS TE） are true？ （）AMPLS TE supports admission controlBMPLS TE tunnel traffic is a link attribute to compute the TE tunnel pathCMPLS TE uses BGP extension to advertise link attributesDMPLS TE provides protection capabilityEMPLS TE uses RSVP to establish LSP
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