3.5 Implement Multicast Direct 300-430 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A network administrator is planning to deploy Multicast Direct in a campus wireless network. The administrator needs to understand how multicast traffic flows from the wired network to wireless clients. Which statement correctly describes the Multicast Direct architecture?

   • AEach AP joins the multicast group independently and receives the multicast stream directly from the wired network, then forwards it as multicast over the air.
   • BThe WLC encapsulates multicast in unicast and sends it to the AP, which then decapsulates and sends it as multicast to clients.
   • CThe WLC receives the multicast stream and forwards it to each AP, which then sends a separate unicast frame to each client in the group.
   • DThe WLC converts multicast to unicast and sends a separate unicast stream to each client, bypassing the APs.
   Reveal Solution Discussion Select an answer first
2. 12application · medium

   A hospital uses Multicast Direct for streaming medical imaging to wireless tablets. Recently, some tablets stop receiving the multicast stream, while others on the same AP continue to receive it. The multicast source is working and the WLC shows the group is active. What is the most likely cause?

   • AThe affected tablets have not sent IGMP membership reports.
   • BThe WLC has disabled IGMP snooping for that SSID.
   • CThe multicast source is sending at a data rate too high for the affected tablets.
   • DThe AP has run out of multicast group slots.
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A network engineer is configuring Multicast Direct on a Cisco WLC. The engineer has enabled the feature globally and on the SSID. However, multicast traffic is still being sent as multicast on the wireless medium. What is a possible reason?

   • AThe APs are not in local mode.
   • BThe WLC does not have multicast enabled globally.
   • CThe SSID is configured for guest access.
   • DThe multicast group address is not in the range 224.0.0.0/4.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Which benefit is directly associated with enabling Multicast Direct on a Cisco wireless network?

   • AIt automatically converts multicast to unicast for all video streams
   • BIt eliminates the need for IGMP snooping on the wired network
   • CIt guarantees that all multicast traffic is delivered reliably to every wireless client
   • DIt reduces the amount of multicast traffic that must traverse the CAPWAP tunnel to the controller
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   In a Multicast Direct architecture, which device is responsible for forwarding multicast frames to wireless clients?

   • AThe upstream multicast router
   • BThe wireless LAN controller
   • CThe switch that connects the AP to the wired network
   • DThe access point
   Reveal Solution Discussion Select an answer first