CCIE系列認證單項選擇題每日一練(2019.05.05)

來源：考試資料網(wǎng)

1 Which one of these statements is true of OSPF type 5 LSAs？（）

2 A network is composed of several VRFs. It is required that VRF users VRF_A and VRF_B be able to route to and from VRF_C，which hosts shared services. However，traffic must not be allowed to flow between VRF_A and VRF_B. How can this be accomplished？（）

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3 In optical channel transport unit overhead （OTU OH）， what are general communication channels 1 and 2（GCC1/GCC2） used for？（）

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4 There are two cabling schemes to choose from when implementing a Cisco CRS-1 multishelf system：single-module cabling and multimodule cabling. What is the maximum capacity of the LCCs that aresupported in multimodule cabling？（）

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5 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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