CCIE系列認證CCIE 415Q單項選擇題每日一練(2019.03.22)

來源：考試資料網(wǎng)

1 You are the network administrator of a small Layer 2 network with 50 users. Lately， users have been complaining that the network is very slow. While troubleshooting， you notice that the CAM table of your switch is full， although it supports up to 12，000 MAC addresses. How can you solve this issue and prevent it from happening in the future？（）

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2 f a Cisco switch is configured with VTPv1 in transparent mode， what is done with received VTP advertisements？（）

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3 Two BGP peers connected through a routed firewall are unable to establish a peering relationship. What could be the most likely cause？（）

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4 Which feature would prevent guest users from gaining network access by unplugging an IP phone and connecting a laptop computer？（）

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5 When troubleshooting the issue， you notice the election of a new root bridge with an unknown MAC address. Knowing that all access ports have the PortFast feature enabled， what would be the easiest way to resolve the issue without losing redundant links？（）

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