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To configure OSPF, you must first start the process with the router ospf [process id]. Then you must add the
networks with the network command and wildcards. There must also be a space after the area command
and the configured area number.
Chapter: 2
88. What does EIGRP use to deliver routing information throughout the internetwork?
A. DUAL B. RTP
C. RTMP D. PDM
Answer: A
Explanation: EIGRP uses the Diffusing Update Algorithm (DUAL) to find routes and make sure the network is
loop free.
Chapter: 2
89. What are three reasons for creating OSPF in a hierarchical design?
A. To decrease routing overhead B. To speed up convergence C. To confine network instability to single areas of the network D. To make configuring OSPF easier Answer: A, B, C
OSPF hierarchal design, if done correctly, can help decrease routing protocol overhead as well as speed up convergence time of the network. If a problem occurs, the whole network isn't flooded with information; only
routers within the troublesome area would be affected. This design is a much more difficult configuration.
Chapter: 2
90. When the show ip route command is used, which of the following codes indicate an EIGRP learned
route?
A. D
B. R
C. S D. I