单项选择题

A. The routers are not on the same network.B. The netwo……

Refer to the exhibit. Routers A and B are directly connected and running OSPF， but they are unable to form a neighbor relationship. What is the most likely cause？（）

A. The routers are not on the same network.
B. The network statements do not match.
C. The process number does not match.
D. The MTU does not match.
E. The OSPF cost does not match.
F. There is a physical issue with the cable.

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单项选择题Refer to the exhibit. Routers A and B are directly connected and running EIGRP， but they are unable to form a neighbor relationship. What is the most likely cause？（）

A. The network statements are misconfigured.
B. The IP address statements are misconfigured.
C. The autonomous system is misconfigured.
D. There is a physical issue with the cable.

单项选择题Refer to the exhibit. Routers A and B are directly connected. Given the configuration， how many EIGRP routes will router B see in its routing table？（）

A. 0
B. 1
C. 2
D. 3
E. 4

单项选择题WhichOSPFLSAtypedoesanASBRusetooriginateadefaultrouteintoanarea？（）

A. LSA 1
B. LSA 3
C. LSA 4
D. LSA 5
E. LSA 7

单项选择题WhichoneofthesestatementsistrueofOSPFtype5LSAs？（）

A. They are used to summarize area routes to other areas.
B. They are used in not-so-stubby areas to propagate external routes.
C. They are used to notify areas of the ASBR.
D. They are flooded to all areas except stub areas （external route）.

单项选择题WhenaBGProuterisnotcapableofunderstanding4-byteASnumbers，itwillsee4-byteASnumbersasaspecial，reserved，2-byteASnumberintheASpath.Which2-byteASnumberisthisreservedone？（）

A.00000
B.12345
C.23456
D.65000
E.99999