300-360 · Question #79
300-360 Question #79: Real Exam Question with Answer & Explanation
The correct answer is C. Clients are roaming at lower data rates and are not maintaining 36Mbps connectivity.. In Cisco CUWN, multicast traffic is transmitted at the highest configured mandatory data rate - in this case 36 Mbps. When clients roam between access points, they temporarily negotiate lower data rates during the reassociation process. Because the AP continues to transmit multic
Question
Options
- AClients are maintaining a 12Mbps rate and cannot receive the stream at 18Mbps.
- BClients are not roaming due to coverage. This is causing the multicast data to drop due to the
- CClients are roaming at lower data rates and are not maintaining 36Mbps connectivity.
- DClients are connected at 18Mbps; however, other clients are connecting at 12Mbps and are
Explanation
In Cisco CUWN, multicast traffic is transmitted at the highest configured mandatory data rate - in this case 36 Mbps. When clients roam between access points, they temporarily negotiate lower data rates during the reassociation process. Because the AP continues to transmit multicast at 36 Mbps, any client that has dropped below that rate during roaming cannot decode the stream, causing the video to drop. Choices A and D reference a 12 Mbps rate, which is not a configured mandatory rate in this scenario, so those clients would not be associated at all. Choice B incorrectly attributes the issue to coverage gaps rather than data rate mismatch during roaming.
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