[单选题]路由器“路由模式”的提示符号是（）

正确答案 ：D

(config-router)

[单选题]Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?

正确答案 ：C

255.255.254.0

解析：解析：Explanation:

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