Multicast messages, like broadcast messages, are sent at a low rate on the wireless side. To ensure full utilization of wireless network resources when there is no multicast service, it is…

Question

Options

• ATrue
• BFalse

• A
  77% (44)
• B
  23% (13)

Explanation

Option A is correct because multicast traffic in wireless networks is transmitted at low data rates (typically the lowest common supported rate) to ensure all devices can receive it, regardless of their distance or signal quality - this mirrors how broadcast messages behave. When no multicast service is active, allowing unsuppressed multicast frames to circulate wastes valuable wireless airtime that could otherwise serve unicast traffic. Enabling multicast suppression prevents these low-rate frames from consuming bandwidth unnecessarily, improving overall wireless network efficiency and utilization.

There are no distractors here since this is a True/False question - option B is simply incorrect because the premise is factually sound: multicast does share the broadcast transmission behavior of using low rates, and suppression is indeed a recommended best practice when multicast services are idle.

Memory tip: Think "multicast = slow cast" - like broadcast, it targets multiple receivers so it uses the slowest safe rate. If nobody needs it, suppress it or you're wasting airtime on slow traffic.

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