3.3 Implement Multicast on a WLAN 300-430 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A hospital is deploying a WLAN for patient entertainment systems that stream live TV channels. The network must support a large number of clients in a waiting area, but the multicast stream is the same for all clients. The network administrator wants to minimize airtime usage while ensuring that all clients receive the stream. What should the administrator configure on the WLC?

   • AEnable multicast-to-unicast conversion for the entertainment SSID
   • BDisable IGMP snooping to allow the multicast stream to be broadcast to all clients
   • CUse multicast forwarding with IGMP snooping and set the multicast data rate to a moderate rate
   • DConfigure the WLC to use unicast forwarding for all multicast traffic
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2. 7foundation · easy

   In a WLAN, which forwarding method is most appropriate for delivering a video stream to a small, known set of clients that are all associated to the same access point?

   • AMulticast forwarding, because it delivers the video to all clients in the group with a single transmission.
   • BUnicast forwarding, because it provides reliable delivery with acknowledgments for each client.
   • CBroadcast forwarding, because it ensures all clients receive the video without requiring group membership.
   • DAnycast forwarding, because it allows the video to be delivered to the nearest client.
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4. 8application · medium

   A network administrator is configuring a WLAN for a multicast application that requires that only clients on a specific SSID receive the multicast traffic. The WLC has multiple SSIDs configured. What should the administrator do to ensure that multicast is only delivered on the specific SSID?

   • AEnable multicast on the WLC and configure the multicast group address for that SSID
   • BDisable multicast on all other SSIDs
   • CEnable IGMP snooping on the WLC and configure the multicast group address for that SSID
   • DUse a multicast policy that applies to the specific SSID
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5. 9foundation · easy

   How does a wireless LAN controller typically learn which clients are interested in a specific multicast group?

   • ABy requiring clients to register with the controller before joining a multicast group.
   • BBy querying the DHCP server for a list of clients that have requested multicast addresses.
   • CBy inspecting IGMP membership reports sent by clients and updating its multicast group table.
   • DBy monitoring the multicast MAC address table on the access point.
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6. 10foundation · easy

   What is the primary benefit of multicast-to-unicast conversion on a WLAN?

   • AIt eliminates the need for IGMP snooping because the controller no longer needs to track group membership.
   • BIt reduces the number of frames on the air by combining multiple multicast streams into one.
   • CIt allows multicast traffic to be sent at higher data rates and with acknowledgments, improving reliability and throughput.
   • DIt ensures that all clients receive the multicast traffic at the same time, reducing latency.
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