Which two are characteristics of using a non-MPLS peer-to-peer model over a traditional overlay model? (Choose two.)

Question

Options

• AThe model is suited for nonredundant configurations.
• BThe configuration on a newly added site PE is updated automatically.
• CProvider routers know the customer network topology.
• DThe customer specifies the exact site-to-site traffic profile.
• ERouting information is exchanged between the customer router and one or a few PEs.

• A
  9% (3)
• B
  3% (1)
• C
  72% (23)
• D
  16% (5)

Explanation

In a non-MPLS peer-to-peer model, provider routers actively participate in customer routing, which means they learn and maintain the customer's network topology (C). This direct routing participation also means each customer edge (CE) router exchanges routing information only with its directly attached PE router(s) - not with every PE in the network - keeping the peering relationships minimal (E).

Why the distractors are wrong:

• A is wrong because peer-to-peer models actually support redundant configurations well; nonredundancy is not a defining trait.
• B is wrong because newly added sites in a non-MPLS peer-to-peer model require manual PE configuration updates - automatic propagation is a benefit associated with MPLS BGP VPNs using route reflectors, not non-MPLS models.
• D is wrong because in peer-to-peer models the provider controls routing decisions; it's the overlay model that gives customers control over exact traffic paths via virtual circuits.

Memory tip: Think "P2P = Provider Participates" - in a Peer-to-Peer model, the Provider learns your topology (C) and your CE Peers with only its local PE(s) (E). In overlay, the provider is just a "dumb pipe" and knows nothing about your network.

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