300-425 Question 78
Single answerAn enterprise network administrator is tasked with configuring multicast on a WLAN to support live video streaming for a company event. The administrator must ensure efficient wireless multicast delivery while minimizing unnecessary bandwidth usage. Which feature should the administrator enable on the WLAN to optimize multicast performance?
- A
Multicast-to-Unicast Conversion
- B
Multicast Rate Optimization
- C
Broadcast Filtering
- D
IGMP Snooping
Show answer and explanation
Correct answer: A
Explanation
In a wireless environment, multicast traffic is typically transmitted at the lowest data rate, which can lead to inefficiencies and poor performance. By enabling Multicast-to-Unicast Conversion on the WLAN, multicast streams are converted to unicast streams, allowing each client to receive the stream at its highest supported data rate. This ensures efficient delivery and minimizes bandwidth usage, making it the optimal solution for the given scenario.
- A. Correct.
Enabling Multicast-to-Unicast Conversion optimizes multicast delivery in a wireless network by converting multicast traffic to unicast, ensuring reliable delivery to all associated clients without requiring multicast support in the wireless medium.
- B. Incorrect.
Multicast Rate Optimization can adjust the rate at which multicast traffic is sent, but it does not address the reliability issues of multicast delivery over WLANs.
- C. Incorrect.
Broadcast Filtering prevents unnecessary broadcast traffic from being forwarded to wireless clients, but it does not solve multicast-specific challenges.
- D. Incorrect.
IGMP Snooping helps optimize multicast traffic in wired networks by ensuring it is sent only to the necessary interfaces, but it is not directly applicable to optimizing multicast traffic on a WLAN.