朋友问我的一个小问题，偶英文不好，大伙看看，选什么

[CCKITTY]

Company A has recently merged with Company B, which exists in the same building and is physically close enough for all the computers to belong on the same network segment. Company A uses an ATM backbone and Fast Ethernet for all nodes. Company B has a Token Ring environment on shielded twisted-pair wiring. Why will Company A and Company B select a router for their newly merged network?

A. Network segment size has reached the maximum
B. Network addresses are not sufficient for a merged network
C. Traffic must be segmented to prevent an expected bandwidth overload
D. A router is the usual way to connect dissimilar network types

[oyljerry]

D