300-425 Question 64
Single answerA network administrator is designing a Cisco wireless network to support multicast traffic for a video streaming application that requires high reliability and low latency. The design must ensure efficient delivery of multicast streams to wireless clients without overwhelming the APs or causing unnecessary bandwidth usage. Which feature should be implemented to achieve this?
- A
Multicast-to-Unicast Mode
- B
IGMP Snooping
- C
Client Load Balancing
- D
Multicast Direct
Show answer and explanation
Correct answer: A
Explanation
In wireless networks, multicast traffic can suffer from reliability issues due to packet loss and interference. Multicast-to-Unicast Mode addresses these challenges by converting multicast streams into unicast, ensuring reliable delivery to each client. This is particularly suitable for applications requiring high reliability, such as video streaming, as it avoids the challenges inherent to native multicast in Wi-Fi networks.
- A. Correct.
Multicast-to-Unicast Mode converts multicast streams into individual unicast streams for each client, ensuring reliability and reducing the chances of packet loss in wireless environments. This is ideal for high-reliability applications like video streaming.
- B. Incorrect.
IGMP Snooping is a Layer 2 feature that optimizes multicast traffic by forwarding it only to ports with interested receivers, but it does not address wireless-specific multicast issues such as packet loss or reliability.
- C. Incorrect.
Client Load Balancing helps distribute clients evenly across access points to avoid congestion but does not directly address multicast traffic optimization.
- D. Incorrect.
Multicast Direct allows multicast streams to be sent directly to clients without converting to unicast, but it may not ensure reliability in environments with high packet loss or interference, which can affect video streaming performance.