CCIP Certification Exam Question:
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Explain Which three statements are correct regarding Layer 2 overlay VPNs and peer-to-peer VPNs?
A.Peer-to-peer VPNs require the establishment of virtual circuits to connect the different customer sites
together.
B.Peer-to-peer VPNs require the service provider to participate in the customer routing, accepting
customer routes, transporting them across the service provider backbone, and finally propagating them to
other customer sites.
C.With peer-to-peer VPNs, the service provider is responsible for transport of Layer 2 frames between
customer sites, and the customer takes responsibility for all higher layers.
D.The implementation of Layer 2 overlay VPNs is the traditional switched-WAN model, implemented with
technologies like X.25, Frame Relay or ATM.
E.With Layer 2 overlay VPNs, the service provider is not aware of customer routing and has no
information about customer routes.
F.It is simple to implement Layer 2 overlay VPNs because the Customer Edge (CE) router just needs a
connection to the Service Providers Provider Edge (PE) router.

Answer:

B: Peer-to-peer VPNs require the service provider to participate in the customer routing, accepting customer routes, transporting them across the service provider backbone, and finally propagating them to
other customer sites.

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How to ensure that the Cisco NAS has the most recent version of the Cisco NAA to install on user devices?
A.
NAA to all Cisco Each time the Cisco NAA is upgraded, the Cisco NAM automatically downloads the new version of Cisco NAS servers.
B. From the Cisco NAS Web Admin Console, enable Cisco NAA autoupdate on the Administration >
Software Update form.
C. The Cisco NAA is upgraded directly to each Cisco NAS using the Upgrade Server form available on the
Cisco NAM web console GUI.
D. Configure the Cisco NAS by selecting which Cisco NAA to upgrade in the Cisco NAA Upgrade form.
Explain Which three statements about MPLS VPNs are true? (Choose three.)
A. PE routers do not participate in customer routing.
B. MPLS VPN is similar to using the peer-to-peer dedicated PE router approach.
C. Customer can use overlapping addresses.
D. Each customer is assigned an independent routing table (virtual routing and
forwarding table VRF).
E. The P Routers routing table contains both the global IP routes and the customer
routes.
F. CE routers connect directly to the service providers P routers.