CCIE系列認(rèn)證CCIE 415Q單項選擇題每日一練(2019.01.17)

來源：考試資料網(wǎng)

1 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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2 You work as a network engineer for the company， you want to configure two BGP speakers to form an EBGP session across a firewall. On the engineer’s network， the firewall always permits TCP sessions that are initiated from the inside network （the network attached to the inside interface of the firewall）. What prerequisite is there for enabling BGP to run on this network？（）

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3 Internet Protocol version 6 （IPv6） is the next-generation Internet Layer protocol for packet-switched internetworks and the Internet. IPv6 router solicitation is（）

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4 Multi Protocol Label Switching （MPLS） is a data-carrying mechanism that belongs to the family of packet-switched networks. For an MPLS label， if the stack bit is set to1， which option is true？（）

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5 For the following ports， which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge？（）

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