CCIE系列認(rèn)證CCIE 415Q單項選擇題每日一練(2019.01.22)

來源：考試資料網(wǎng)

1 Which one of the following potential issues is eliminated by using split horizon？（）

2 Which statement is correct about an OSPF sham-link？（）

3 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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4 When two bridges are competing for the root bridge of an IEEE 802.1D spanning tree and both have the same bridge priority configured， which parameter determines the winner？（）

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5 Which router is doing LSA type 7 to type 5 translation，and why？（）

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