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單項選擇題

Under which circumstance, ie network type, would an OSPF router establish a neighbor adjacency, even though the DR/BDR election process was not performed?（）

A. Point-to-point
B. Broadcast multicast
C. Nonbroadcast multicast
D. Backbone area 0
E. Virtual Link

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單項選擇題

A routing table contains static, RIP, and IGRP routes destined to the same network with each route set to its default administrative distance. Which route will be the preferred route?（）

A. The RIP route
B. The static route
C. The IGRP route
D. All three will load balance.

單項選擇題

What is the maximum number of hops OSPF allows before it deems a network unreachable?（）

A. 15
B. 16
C. 99
D. 255
E. Unlimited

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