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单选题
When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.（）
A
PIM sparse - dense
B
Bidir - PIM
C
PIM - RP
D
PIM - DM
E
PIM - SM
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考题
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
考题
Refer to the network of Layer 3 switches in the exhibit. The RPI Multi cast Server only multicasts to hosts connected to multilayer switches 5 and 6. The CMU Multicast Server multicasts to hosts on multilayer switches 1 - 6. Given the number of configuration steps involved, what is the most efficient way to configure the net work while meeting the requirements for multicast data flow? （）A. Configure each switch with PIM sparse mode and a separate instance of PIM dense mode.Specify switch 1 as the root for the RPI Multicast Server. Specify switch 2 as the root for the CMU Multicast Server.B. Configure each switch with PIM sparse mode and a separate instance of PIM dense mode. Leave each multicast server as the root of its own multicast tree.C. Configure each switch with PIM sparse - dense mode. Configure switch 3 as a ren dezvous point for the RPI multicast stream.D. Configure each switch with PIM sparse mode and a separate instance of PIM dense mode.Allow the switches to elect their own root for each multicast tree.E. Configure each switch with PIM sparse mode.F. Configure each switch with PIM dense mode.
考题
What is the purpose of a rendezvous point (RP)?()
A. acts as a meeting place for sources and receivers of multicast trafficB. used in PIM dense m ode to create a database of all multicast sourcesC. used in PIM dense and sparse mode to create a database of all multicast sourcesD. acts as the designated router for a broadcast segment when multicast routing is enabled
考题
When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.()
A. PIM sparse - denseB. Bidir - PIMC. PIM - RPD. PIM - DME. PIM - SM
考题
When building an IP multicast domain using PIM which mode assumes that other routers do not want to forward multicast packets for the group?()
A. PIM - DMB. PIM - SMC. PIM - RPD. CGMPE. IGMP snooping
考题
Choose two commands that are required to enable multicast on a router， when it is known that thereceivers use a specific functionality of IGMPv3.（）A、ip pim rp-addressB、ip pim ssmC、ip pim sparse-modeD、ip pim passive
考题
Which two statements are true about the rendezvous poin t (RP) in a multicast network?（）A、The multicast sources must register with the RP to form the multicast distribution tree.B、An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).C、The multicast receivers must register with the RP to form the multicast distribution tree.D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).E、An RP is required only in networks running Protocol Independent Multicast sparse - dense mode (PIM - SDM).F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.
考题
Which command can be used to check the assignment of RPs to multicast groups？（）A、show ip pim rendez-vousB、show ip rpf rp mappingC、show ip pim rp mappingD、show ip pim rp infoE、show ip pim
考题
When building an IP multicast domain using PIM which mode assumes that other routers do not want to forward multicast packets for the group?（）A、PIM - DMB、PIM - SMC、PIM - RPD、CGMPE、IGMP snooping
考题
Which three statements are true about IP multicast configuration?（）A、PIM sparse - dense mode and PIM dense mode require an RP on the network.B、PIM sparse mode and PIM dense mode require an RP on the network.C、PIM sparse mode interfaces are always added to the multicast routing table in a router.D、PIM sparse mode and PIM sparse - dense mode require an RP on the network.E、PIM dense mode interfaces are always added to the multicast routing table in a router.F、PIM sparse - dense mode acts as PIM dense mode if an RP is not known.
考题
Which three statements best describe multicast operation on Cisco Nexus switches in a data center？（）A、 Cisco NX-OS Software does not support PIM dense mode.B、 The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch.C、 PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command.D、 Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance.E、 The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.
考题
Which statement is correct in reference to IPv6 multicast？（）A、IPv6 multicast uses Multicast Listener Discovery.B、The first 8 bits of an IPv6 multicast address are always FF （1111 1111）.C、IPv6 multicast requires MSDP.D、PIM dense mode is not part of IPv6 multicast.
考题
Which two statements are tru e about the rendezvous point (RP) in a multicast network?（）A、The multicast sources must register with the RP to form the multicast distribution treeB、An RP is required only in networks running Protocol Independent Multicast dense mode ( PIM DM)C、The multicast receivers must register with the RP to form the multicast distribution treeD、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM)E、An RP is required only in networks running Pro tocol Independent Multicast sparse - dense mode (PIM - SDM)F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP
考题
Multicast is being deployed in the network， and only ip pim sparse-dense mode has been configured on all interfaces in the network to support a new video streaming application. No other multicast configuration was applied 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？（）A、PIM sparse mode is being used.B、PIM dense mode is being used.C、The BGP multicast address family has not been configured.D、IGMP version 3 is being used.E、IP PIM neighbor filters have not been applied.
考题
What is the purpose of a rendezvous point (RP)?（）A、acts as a meeting place for sources and receivers of multicast trafficB、used in PIM dense m ode to create a database of all multicast sourcesC、used in PIM dense and sparse mode to create a database of all multicast sourcesD、acts as the designated router for a broadcast segment when multicast routing is enabled
考题
When IP multicast is enabled via PIM, which mode uses the flood and prune metho d? Select the best response.（）A、PIM sparse - denseB、Bidir - PIMC、PIM - RPD、PIM - DME、PIM - SM
考题
Which two commands are required to enable multicast on a router， knowing that the receivers only support IGMPv2？（）A、ip pim rp-addressB、ip pim ssmC、ip pim sparse-modeD、ip pim passive
考题
What is the benefit of using Anycast RP via RFC 4610 for IP multicast RP redundancy？（） A、 Improves convergence of the multicast network due to enhanced RPF checksB、 Simplifies the number of control plane protocols over other RP redundancy methodsC、 Eliminates the use of Protocol Independent Multicast （PIM） in the topologyD、 Increases the administrative distances in Multicast Source Discovery Protocol （MSDP） configuration
考题
Which two statements are true about the rendezvo us point (RP) in a multicast network?（）A、The multicast sources must register with the RP to form the multicast distribution tree.B、An RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).C、The mu lticast receivers must register with the RP to form the multicast distribution tree.D、An RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).E、An RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).F、To form the multicast distribution tree, the multicast sources register with and the receivers join the RP.
考题
多选题Which two statements are true about the rendezvous poin t (RP) in a multicast network?（）AThe multicast sources must register with the RP to form the multicast distribution tree.BAn RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).CThe multicast receivers must register with the RP to form the multicast distribution tree.DAn RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).EAn RP is required only in networks running Protocol Independent Multicast sparse - dense mode (PIM - SDM).FTo form the multicast distribution tree, the multicast sources register with and the receivers join the RP.
考题
单选题Which command can be used to check the assignment of RPs to multicast groups？（）A
show ip pim rendez-vousB
show ip rpf rp mappingC
show ip pim rp mappingD
show ip pim rp infoE
show ip pim
考题
多选题Which two statements are true about the rendezvo us point (RP) in a multicast network?（）AThe multicast sources must register with the RP to form the multicast distribution tree.BAn RP is required only in networks running Protocol Independent Multicast dense mode (PIM DM).CThe mu lticast receivers must register with the RP to form the multicast distribution tree.DAn RP is required only in networks running Protocol Independent Multicast sparse mode (PIM SM).EAn RP is required only in networks running Protocol Independent Mu lticast sparse - dense mode (PIM - SDM).FTo form the multicast distribution tree, the multicast sources register with and the receivers join the RP.
考题
多选题Which two multicast protocol statements are true？ （Choose two.） （）ADense mode multicast requires explicit join messages from their members.BDense mode multicast uses a push model to flood traffic throughout the network and then prunes the unwanted traffic.CSparse mode multicast uses a pull model to send multicast traffic to where it is requested.DSparse mode uses reverse path forwarding （RPF） to prune off redundant flows.EThe primary use of sparse mode multicast is for test labs and router performance testing.
考题
单选题When building an IP multicast domain using PIM which mode assumes that other routers do not want to forward multicast packets for the group?（）A
PIM - DMB
PIM - SMC
PIM - RPD
CGMPE
IGMP snooping
考题
多选题Which two multicast protocol statements are true?（）ASparse mode multicast uses a pull model to send multicast traffic to where it is requestedBDense mode multicast uses a push model to flood traffic throughout the network and then prunes the unwanted trafficCDense mode multicast requires explicit join messa ges from their membersDSparse mode uses reverse path forwarding (RPF) to prune off redundant flowsEThe primary use of sparse mode multicast is for test labs and router performance testing
考题
多选题Which three statements best describe multicast operation on Cisco Nexus switches in a data center？（）ACisco NX-OS Software does not support PIM dense mode.BThe command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch.CPIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command.DCisco NX-OS Software supports multicast routing per Layer 3 VRF instance.EThe default PIM operational mode on the Cisco Nexus 7000 switch is SSM.
考题
多选题Which three statements are true about IP multicast configuration?（）APIM sparse - dense mode and PIM dense mode require an RP on the network.BPIM sparse mode and PIM dense mode require an RP on the network.CPIM sparse mode interfaces are always added to the multicast routing table in a router.DPIM sparse mode and PIM sparse - dense mode require an RP on the network.EPIM dense mode interfaces are always added to the multicast routing table in a router.FPIM sparse - dense mode acts as PIM dense mode if an RP is not known.
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