Implementing Cisco Enterprise Wireless Networks (ENWLSI) — Question 17

Which statement about the VideoStream/Multicast Direct feature is true?

Answer options

• A. IP multicast traffic is reliable over WLAN by default as defined by the IEEE 802.11 wireless multicast delivery mechanism.
• B. Each VideoStream client acknowledges receiving a video IP multicast stream.
• C. It converts the unicast frame to a multicast frame over the air.
• D. It makes the delivery of the IP multicast stream less reliable over the air, but reliable over Ethernet.

Correct answer: B

Explanation

The correct answer is B, as it accurately describes that each VideoStream client must acknowledge the receipt of the video IP multicast stream. Option A is incorrect because IP multicast traffic is not inherently reliable over WLAN. Option C is misleading as it does not accurately describe the function of the feature, and option D incorrectly states that the delivery becomes less reliable over the air.