CCNA系列認(rèn)證CCNA系列認(rèn)證綜合練習(xí)單項(xiàng)選擇題每日一練(2019.03.14)

來源：考試資料網(wǎng)

1 A host on the LAN is accessing an FTP server across the Internet. Which of the following addresses could appear as a source address for the packets forwarded by the router to the destination server（）。

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2 哪個IEEE標(biāo)準(zhǔn)協(xié)議的啟動，成功完成DTP超過快速以太網(wǎng)交換機(jī)？（）

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3 In the implementation of VLSM techniques on a network using a single Class C IP address,which subnet mask is the most efficient for point-to-point serial links?（）

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4 What value is primarily used to determine which port becomes the root port on each nonroot switch in aspanning-tree topology？（）

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5 哪一個或多個參數(shù)被用來計(jì)算在Cisco路由器OSPF成本是多少？（）

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