单选题Which multicast mode does Auto-RP require?（）A Link-modeB Dense modeC Sparse modeD Sparse-dense mode

第1题

Which three statements are true about the Internet Group Management Protocol (IGMP)? ()A. There are three IGMP modes: dense mode, sparse mode, and sparse - dense modeB. IGMP is used to register individual hosts with a multicast groupC. IGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic fromD. IGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1E. IGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRPF. IGMP snooping ru ns on Layer 3 routers

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第2题

哪一种接口模式必须在Auto-RP环境中使用（）A、Sparse mode B、Dense mode C、Sparse-dense mode D、Dense-sparse mode

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第3题

当multicast启用pim sparse-mode，但是没配置auto-rp，你将用什么方法？

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第4题

Which three statements are true about the Internet Group Management Protocol (IGMP)? （）A、There are three IGMP modes: dense mode, sparse mode, and sparse - dense modeB、IGMP is used to register individual hosts with a multicast groupC、IGMP version 3 enables a multicast receiving host to specify to the router which sources it should forward traffic fromD、IGMP messages a re IP datagrams with a protocol value of 2, destination address of 224.0.0.2, and a TTL value of 1E、IGMP is a multicast routing protocol that makes packet - forwarding decisions independent of other routing protocols such as EIGRPF、IGMP snooping ru ns on Layer 3 routers

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第5题

Which two multicast protocol statements are true？ （Choose two.）  （）A、 Dense mode multicast requires explicit join messages from their members.B、 Dense mode multicast uses a push model to flood traffic throughout the network and then prunes the  unwanted traffic.C、 Sparse mode multicast uses a pull model to send multicast traffic to where it is requested.  D、 Sparse mode uses reverse path forwarding （RPF） to prune off redundant flows.E、 The primary use of sparse mode multicast is for test labs and router performance testing.

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第6题

Which two multicast protocol statements are true?（）A、Sparse mode multicast uses a pull model to send multicast traffic to where it is requestedB、Dense mode multicast uses a push model to flood traffic throughout the network and then prunes the unwanted trafficC、Dense mode multicast requires explicit join messa ges from their membersD、Sparse mode uses reverse path forwarding (RPF) to prune off redundant flowsE、The primary use of sparse mode multicast is for test labs and router performance testing

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第7题

The ip pim autorp listener command is used to do which of these？（）A、enable a Cisco router to "passively" listen to Auto-RP packets without the router actively sending or forwarding any of the packetsB、allow Auto-RP packets in groups 224.0.1.39 and 224.0.1.40 to be flooded in dense mode out interfaces configured with the ip pim sparse-mode commandC、enable the use of Auto-RP on a routerD、configure the router as an Auto-RP mapping agent

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