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300-101 – CCNP Implementing Cisco IP Routing (ROUTE v2.0)

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Showing 19–20 of 20 questions

Question 19 (Mix Questions)

Which Netflow version supports MPLS?

Select an option, then click Submit answer.

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None
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All of them
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Version 8 and 9
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Version 9

Question 20 (VPN Technologies)

Which Cisco IOS VPN technology leverages Ipsec, mGRE, dynamic routing protocol, NHRP, and Cisco Express Forwarding?

Select an option, then click Submit answer.

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FlexVPN
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DMVPN
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GETVPN
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Cisco Easy VPN

Reference / correct answer:

DMVPN

Dynamic Multipoint Virtual Private Network (DMVPN) is a dynamic tunneling form of a virtual private network (VPN) supported on Cisco IOS-based routers and Unix-like Operating Systems based on the standard protocols, GRE, NHRP and Ipsec. This DMVPN provides the capability for creating a dynamic-mesh VPN network without having to pre-configure (static) all possible tunnel end-point peers, including Ipsec (Internet Protocol Security) and ISAKMP (Internet Security Association and Key Management Protocol) peers. DMVPN is initially configured to build out a hub-and-spoke network by statically configuring the hubs (VPN headends) on the spokes, no change in the configuration on the hub is required to accept new spokes. Using this initial hub-and-spoke network, tunnels between spokes can be dynamically built on demand (dynamic-mesh) without additional configuration on the hubs or spokes. This dynamic-mesh capability alleviates the need for any load on the hub to route data between the spoke networks. DMVPN is combination of the following technologies:

Multipoint GRE (mGRE)

Next-Hop Resolution Protocol (NHRP)

Dynamic Routing Protocol (EIGRP, RIP, OSPF, BGP)

Dynamic Ipsec encryption

Cisco Express Forwarding (CEF)

Reference: http://en.wikipedia.org/wiki/Dynamic_Multipoint_Virtual_Private_Network

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