CCIE系列認證CCIE 415Q單項選擇題每日一練(2019.01.21)

來源：考試資料網

1 What does the OSPF command capability vrf-lite achieve？（）

2 A branch router is configured with an egress QoS policy that was designed for a total number of 10 concurrent VOIP Calls. Due to Expansion， 15 VOIP Calls are now running over the link， but after the 14th call was established， all calls were affected and the voice quality was dramatically degraded. Assuming that there is enough bandwidth on the link for all of this traffic， which part of the QOS configuration should be updated due to the new traffic profile？（）

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3 In GLBP， which router will answer on client ARP requests？（）

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4 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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5 In Frame Relay， FECN messages indicating congestion are sent or received by which of following？（）

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