300-360 Question #93: Real Exam Question with Answer & Explanation

The correct answer is A: latency. Real-time video conferencing requires cell planning focused on the three primary QoS metrics that directly impact media stream quality: latency, jitter, and packet loss.

Question

When implementing video teleconferencing over a wireless network, which three attributes should be considered when cell planning? (Choose three.)

Options

Alatency
Bjitter
Cthroughput
Dpacket loss
Eclient association
Fnumber of users on the network

Explanation

Real-time video conferencing requires cell planning focused on the three primary QoS metrics that directly impact media stream quality: latency, jitter, and packet loss.

Common mistakes.

C. Throughput is important for capacity planning but is not one of the three primary RF cell-planning attributes specifically tied to real-time media quality for video teleconferencing.
E. Client association is a Layer 2 operational concern and not a QoS attribute used to evaluate RF cell design for real-time video performance.
F. Number of users is a capacity planning input, not an RF cell-planning attribute that directly measures or predicts the quality of real-time video streams.

Concept tested. QoS attributes for wireless real-time video

Reference. https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/vowlan/41dg/vowlan41dg-book/vowlan_ch2.html

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