3.5 Implement Multicast Direct 300-430 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which command is used on a Cisco wireless controller to verify that Multicast Direct is enabled for a WLAN?

   • Ashow multicast direct status
   • Bshow wlan summary
   • Cshow ap config general
   • Dshow wlan id <id>
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2. 27expert · hard

   A hospital uses Multicast Direct for streaming medical images to wireless tablets. The network team has enabled the feature on the WLC and the SSID. However, some tablets are not receiving the stream. The WLC shows the multicast group is active, and the APs show Multicast Direct is enabled. What is the most likely cause?

   • AThe APs are not in local mode.
   • BThe multicast source is not sending to the correct group address.
   • CThe tablets have not sent IGMP membership reports.
   • DThe WLC has reached its maximum number of multicast groups.
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4. 28application · medium

   A hospital is deploying a wireless network for a telemedicine application that uses multicast to stream high-definition video to multiple doctors. The network must ensure that the video is delivered reliably and without excessive delay. The administrator is considering enabling Multicast Direct. What is the primary benefit of Multicast Direct in this scenario?

   • AIt increases the multicast data rate to the maximum supported by the AP.
   • BIt eliminates the need for IGMP snooping on the WLC.
   • CIt improves reliability by using unicast frames that can be retransmitted.
   • DIt reduces the amount of multicast traffic on the wired network.
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5. 29expert · hard

   A company uses Multicast Direct for a wireless video surveillance system. The system sends multicast video to multiple monitoring stations. Recently, the video quality has degraded, and the network team suspects that the wireless medium is congested. They want to optimize the delivery. What is the best approach?

   • AIncrease the multicast data rate to the highest supported rate.
   • BUse a different multicast group address for each monitoring station.
   • CEnable Multicast Direct and ensure that clients join the multicast group via IGMP.
   • DDisable IGMP snooping to allow multicast to flood to all clients.
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6. 30application · medium

   A network architect is designing a wireless network for a large auditorium where many clients will receive the same multicast video stream. The architect wants to ensure that the wireless medium is used efficiently. How does Multicast Direct achieve this efficiency?

   • AIt sends a single multicast frame that all clients can receive simultaneously.
   • BIt sends a separate unicast frame to each client at the client's negotiated data rate.
   • CIt compresses the multicast stream to reduce the amount of data transmitted.
   • DIt uses a dedicated radio to transmit multicast traffic on a separate channel.
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