Cisco Implementing Enterprise Advanced Routing and Services (ENARSI) 300-410 Dumps in PDF

Free Cisco 300-410 Real Questions (page: 15)

Refer to the exhibit. Which interface configuration must be configured on the HUB router to enable MVPN with mGRE mode?


  1. interface Tunnel0
    descriptionmGRE - DMVPN Tunnel
    ip address 10.1.0.1 255.255.255.0
    ipnhrp map multicast dynamic
    ipnhrp network-id 1
    tunnel source 172.17.0.1
    ipnhrp map 10.0.0.11 172.17.0.2
    ipnhrp map 10.0.0.12 172.17.0.3
    tunnel mode gre

  2. interface Tunnel0
    descriptionmGRE - DMVPN Tunnel
    ip address 10.0.0.1 255.255.255.0
    ipnhrp map multicast dynamic
    ipnhrp network-id 1
    tunnel source 10.0.0.1
    tunnel mode gre multipoint

  3. interface Tunnel0
    descriptionmGRE - DMVPN Tunnel
    ip address 10.0.0.1 255.255.255.0
    ipnhrp network-id 1
    tunnel source 172.17.0.1
    tunnel mode gre multipoint

  4. interface Tunnel0
    descriptionmGRE - DMVPN Tunnel
    ip address 10.0.0.1 255.255.255.0
    ipnhrp map multicast dynamic
    ipnhrp network-id 1
    tunnel source 10.0.0.1
    tunnel destination 172.17.0.2
    tunnel mode gre multipoint

Answer(s): C



How are MPLS Layer 3 VPN services deployed?

  1. The RD and RT values must match under the VRF.
  2. The import and export RT values under a VRF must always be the same.
  3. The label switch path must be available between the local and remote PE routers.
  4. The RD and RT values under a VRF must match on the remote PE router.

Answer(s): C



Which IGPs are supported by the MPLS LDP autoconfiguration feature?

  1. ISIS and RIPv2
  2. RIPv2 and OSPF
  3. OSPF and EIGRP
  4. OSPF and ISIS

Answer(s): D


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/15-s/mp-ldp-15-s-book/mp-ldp-autoconfig.pdf



Refer to the exhibit.


An engineer must establish multipoint GRE tunnels between hub router R6 and branch routers R1, R2, and R3.

Which configuration accomplishes this task on R1?


  1. interface Tunnel 1
    ip address 192.168.1.1 255.255.255.0
    tunnel source e0/0
    tunnel mode gre multipoint
    ipnhrpnhs 192.168.1.6
    ipnhrp map 192.168.1.6 192.1.10.1
    ipnhrp map 192.168.1.2 192.1.20.2
    ipnhrp map 192.168.1.3 192.1.30.3

  2. interface Tunnel 1
    ip address 192.168.1.1 255.255.255.0
    tunnel source e0/1
    tunnel mode gre multipoint
    ipnhrpnhs 192.168.1.6
    ipnhrp map 192. 168.1.6 192.1.10.6

  3. interface Tunnel 1
    ip address 192. 168.1.1 255.255.255.0
    tunnel source e0/0
    tunnel mode gre multipoint
    ipnhrp network-id 1
    ipnhrpnhs 192.168.1.6
    ipnhrp map 192.168.1.6 192.1.10.6

  4. interface Tunnel 1
    ip address 192.168.1.1 255. 255.255.0
    tunnel source e0/1
    tunnel mode gre multipoint
    ipnhrp network-id 1
    ipnhrpnhs 192.168.1.6
    ipnhrp map 192.168.1.6 192.1.10.1
    ipnhrp map 192.168.1.2 192.1.20.2
    ipnhrp map 192.168.1.3 192.1.30.3

Answer(s): C



How is VPN routing information distributed in an MPLS network?

  1. The top level of the customer data packet directs it to the correct CE device.
  2. It is established using VPN IPsec peers.
  3. It is controlled through the use of RD.
  4. It is controlled using of VPN target communities.

Answer(s): D


Reference:

https://www.ccexpert.us/mpls-design/chapter-5-packetbased-mpls-vpns.html



IPv6 is enabled in the infrastructure to support customers with an IPv6 network over WAN and to connect the head office to branch offices in the local network. One of the customers is already running IPv6 and wants to enable IPv6 over the DMVPN network infrastructure between the headend and branch sites.

Which configuration command must be applied to establish an mGRE IPv6 tunnel neighborship?

  1. ipv6 nhrpholdtime 30
  2. tunnel mode gre multipoint ipv6
  3. ipv6 unicast-routing
  4. tunnel protection mode ipv6

Answer(s): B


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/configuration/xe-16/ir-xe-16-book/ip6-mgre-tunls.pdf



What is a characteristic of Layer 3 MPLS VPNs?

  1. Traffic engineering capabilities provide QoS and SLAs.
  2. Traffic engineering supports multiple IGP instances.
  3. LSP signaling requires the use of unnumbered IP links for traffic engineering.
  4. Authentication is performed by using digital certificates or preshared keys.

Answer(s): A


Reference:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_diffserv/configuration/15-mt/mp-te-diffserv-15-mt-book/mp-te-diffserv-aw.html



How does an MPLS Layer 3 VPN differentiate the IP address space used between each VPN?

  1. by RT
  2. by address family
  3. by RD
  4. by MP-BGP

Answer(s): C



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