Free 4A0-104 Exam Braindumps (page: 30)

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Which of the following best describes the label stack for a packet in the VPRN context?

  1. An outer label and a transport label.
  2. An inner label and a service label.
  3. A transport label and a service label.
  4. An MPLS transport label

Answer(s): C



Which of the following statements about VPRN is NOT true? (Choose 2)

  1. VPRN is an IP service that connects multiple sites in a single routed domain over the provider- managed IP/MPLS network.
  2. Each VPRN consists of a set of customer sites that must connect to the same PE router
  3. In a VPRN service, each customer router becomes a routing peer to other customer routers
  4. VPRN provides customer routers with transparent IP connectivity without knowledge of the MPLS core

Answer(s): B,C



A VPRN service is configured with BGP used as the CE-PE routing protocol.
What address families are required on the PE-CE BGP session?

  1. VPN-IPv4 address families are required in order for routes to be exchanged with the PE.
  2. Only default IPv4 address families are required since the CE is not aware of the VPRN service
  3. Either IPv4 or VPN-IPv4 address families can be configured on the PE-CE BGP session
  4. An IPv4 address family configuration is required for the PE-PE configuration.

Answer(s): B



Which of the following statements are FALSE regarding the VPN-IPv4 address family? (Choose 2)

  1. When a PE router receives an IPv4 prefix from its local CE it creates a VPN-IPv4 prefix.
  2. The route distinguisher (RD) is appended to the IPv4 prefix to form a 16 byte VPN-IPv4 prefix.
  3. VPN-IPv4 allows BGP to distinguish multiple routes with the same prefixes originated from distinct customers
  4. VPN-IPv4 addresses are only present within the service provider network.
  5. In VPRN, data traffic is carried in VPN-IPv4 packets.

Answer(s): B,C






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