CCIE系列認(rèn)證CCIE(350-001)章節(jié)練習(xí)(2019.04.27)

來源：考試資料網(wǎng)

1 The classic Spanning Tree Protocol （802.1 D 1998） uses which sequence of variables to determine thebest received BPDU？（）

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2 In PIM-SM what control plane signaling must a multicast source perform before it begins to send multicasttraffic to a group？（）

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3 Multicast is being deployed in the network， and only ip pim sparse-dense mode has been configured on allinterfaces in the network to support a new video streaming application. No other multicast configuration wasapplied anywhere in the network. Since enabling multicast， the network monitoring tools show periodic spikes in link utilization throughout the network， even in areas where the video application is not being used.What could be a possible cause？（）

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4 Which types of prefixes will a router running BGP most likely advertise to an IBGP peer， assuming it is notconfigured as a route reflector？（）

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5 Which three protocols or applications should be placed in a class that is configured with WRED？（）

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6 Which two are natively included by the IEEE 802.1w standard？（）

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

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8 Which configuration is used to enable root guard？（）

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9 Which statement is true about TCN propagation？（）

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10 Refer to the exhibit. Routers A and B are directly connected and running OSPF， but they are unable to form a neighbor relationship. What is the most likely cause？（）

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