300-430 Question 68
Single answerA network administrator is deploying a wireless network to support multicast traffic for a video streaming service. They need to ensure that the wireless multicast traffic is optimized and does not consume unnecessary bandwidth on the access points. Which approach should the administrator take to implement multicast on the wireless network?
- A
Enable Multicast-to-Unicast conversion on the wireless LAN controller (WLC).
- B
Use IGMP Snooping to manage multicast group membership.
- C
Disable multicast support on the wireless network to avoid overhead.
- D
Configure the wireless network to use PIM Sparse Mode (PIM-SM).
Show answer and explanation
Correct answer: A
Explanation
In wireless networks, multicast traffic is typically sent at a lower data rate, which can consume significant bandwidth and affect performance. To optimize multicast traffic on the wireless network, the Multicast-to-Unicast conversion feature on the WLC can be enabled. This converts multicast streams into unicast streams for each client, ensuring efficient use of the wireless medium and improving performance for applications like video streaming.
- A. Correct.
Enabling Multicast-to-Unicast conversion ensures that multicast traffic is converted to unicast streams to each client, which is more efficient in wireless networks where multicast is typically sent at low data rates.
- B. Incorrect.
While IGMP Snooping is used in wired networks to optimize multicast traffic, it does not directly address the challenges of multicast traffic in a wireless environment.
- C. Incorrect.
Disabling multicast support would prevent multicast traffic from functioning, which is not a solution for supporting video streaming services on the wireless network.
- D. Incorrect.
PIM Sparse Mode (PIM-SM) is a multicast routing protocol used for wired networks and does not apply to optimizing multicast traffic over a wireless network.