CCNA系列認證章節(jié)練習(2020.04.27)

來源：考試資料網(wǎng)

1 What can be done to secure the virtual terminal interfaces on a router?（）

2 哪一個OSPF命令可以把所有端口劃分進area 0？（）

3 Identify the four valid IPv6 addresses.（）

4 Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state?（）

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5 PPP如何與不同網(wǎng)絡層協(xié)議交互？（）

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6 Which IPV6 routing protocol uses multicast group FF02::9 to send updates?（）

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7 有哪三個原因，一個組織擁有多個分支機構和漫游用戶有可能實現(xiàn)點至點WAN鏈接的思科VPN解決方案呢？（）

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8 什么的SNMP消息提醒管理者到網(wǎng)絡上的一個狀況？（）

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9 TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.（）

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10 Which two subnetworks would be included in the summarized address of 172.31.80.0 /20?（）

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