問答題EIGRP中traffic-share balanced命令是什么意思？

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1.單項選擇題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 packets
B.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 command
C.enable the use of Auto-RP on a router
D.configure the router as an Auto-RP mapping agent

3.單項選擇題Which of these statements about PIM join messages in classic PIM-SM is correct？（）

A.PIM join messages are sent every 60 seconds to refresh the upstream router’s mroute state for the multicast tree.
B.Routers send a PIM join acknowledgement in response to each PIM join message received from a downstream router.
C.PIM join messages are only sent when the multicast distribution tree is first being established.
D.PIM join messages are sent every three minutes to refresh the upstream router’s mroute state for the multicast tree.

4.單項選擇題In PIM-SM what control plane signaling must a multicast source perform before it begins to send multicast traffic to a group？（）

A.The source must send a PIM Register message to the rendezvous point （RP）
B.The source must first join the multicast group using IGMP before sending
C.The source must perform a Request to Send （RTS） and Clear to Send （CTS） handshake with the PIM designated router （DR）
D.No control plane signaling needs to be performed；the source can simply begin sending on the local subnet

5.單項選擇題Two routers configured to run BGP have been connected to a firewall， one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer， including the correct BGP session endpoint addresses and the correct BGP session hop-count limit （EBGP multihop）. What is a good first test to see if BGP will work across the firewall？（）

A.Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall. If telnet works， BGP will work， since telnet and BGP both use TCP to transport data.
B.Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall. If you can ping between them， BGP should work， since BGP uses IP to transport packets.
C.There is no way to make BGP work across a firewall without special configuration， so there is no simple test that will show you if BGP will work or not， other than trying to start the peering session.
D.There is no way to make BGP work across a firewall.