642-902 Q&A – Implement an EIGRP based solution (21-25)

Section1 – Implement an EIGRP based solution, given a network design and a set of requirements

QUESTION NO: 21
Which three statements about the EIGRP routing protocol are true? (Choose three.)
A. EIGRP supports five generic packet types, including hello, database description (DBD), linkstate request(LSR), link-state update (LSU), and LSAck.
B. EIGRP sends periodic hello packets to the multicast IP address 224.0.0.10.
C. EIGRP will not form a neighbor relationship with another peer when their K values are mismatched.
D. EIGRP sends periodic hello packets to the multicast IP address 224.0.0.9.
E. EIGRP will form a neighbor relationship with another peer even when their K values are mismatched.
F. EIGRP supports five generic packet types, including hello, update, query, reply, and ACK packets.
Answer: B,C,F

QUESTION NO: 22
After DUAL calculations, a router has identified a successor route, but no routes have qualified as a feasible successor. In the event that the current successor goes down, what process will EIGRP use in the selection of a new successor?
A. EIGRP will automatically use the route with the lowest advertised distance (AD).
B. The route will transition to the active state.
C. The route will transition to the passive state.
D. EIGRP will find the interface with the lowest MAC address.
E. EIGRP will automatically use the route with the lowest feasible distance (FD).
Answer: B

QUESTION NO: 23
Refer to the exhibit. EIGRP has been configured on all routers in the network. What additional configuration statement should be included on router R4 to advertise a default route to its neighbors?

image
A. R4(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.1
B. R4(config)# ip default-network 10.0.0.0
C. R4(config-router)# default-information originate
D. R4(config)# ip route 10.0.0.0 255.0.0.0 10.1.1.1
Answer: B
Explanation:
Unlike the ip default-gateway command, you can use ip default-network when ip routing is enabled on the Cisco router. When you configure ip default-network the router considers routes to that network for installation as the gateway of last resort on the router.
For every network configured with ip default-network , if a router has a route to that network, that route is flagged as a candidate default route.
Gateways of last resort selected using the ip default-network command are propagated differently depending on which routing protocol is propagating the default route. For IGRP and EIGRP to propagate the route, the network specified by the ip default-network command must be known to IGRP or EIGRP. This means the network must be an IGRP- or EIGRP-derived network in the routing table, or the static route used to generate the route to the network must be redistributed into IGRP or EIGRP, or advertised into these protocols using the network command. In this case, the 10.0.0.0 network is indeed being advertised via EIGRP.

QUESTION NO: 24
Your network consists of a large hub-and-spoke Frame Relay network with a CIR of 56 kb/s for each spoke. Which statement about the selection of a dynamic protocol is true? Select the best response.
A. EIGRP would be appropriate if LMI type ANSI is NOT used.
B. EIGRP would be appropriate, because the Frame Relay spokes could be segmented into their own areas.
C. EIGRP would be appropriate, because by default, queries are not propagated across the slow speed Frame Relay links.
D. EIGRP would be appropriate, because you can manage how much bandwidth is consumed over the Frame Relay interface.
Answer: D

QUESTION NO: 25
ACME Rocket Sleds is growing, and so is their network. They have determined that they can no longer continue using static routes and must implement a dynamic routing protocol. They want to have data use multiple paths to the destinations, even if the paths are not equal cost. Which routing protocol has the ability to do this? Select the best response.
A. EIGRP
B. OSPF
C. RIPv1
D. RIPv2
E. BGP
F. IS-IS
Answer: A

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