350-801 CLCOR: Implementing and Operating Cisco Collaboration Core TechnologiesDemo

By Cisco · Question Mode

QuestionQ137

Media and QoS

Which characteristic of video traffic determines its QoS requirements?

  • A Video is typically variable bit rate.
  • B Voice and video traffic are different, but they have the same QoS requirements.
  • C Video is typically constant bit rate.
  • D Voice and video traffic are the same, so they have the same QoS requirements.
Explanation

Compressed video traffic is typically variable bit rate (VBR) and bursty: its rate changes with image complexity and motion. QoS must therefore accommodate variable bandwidth demand rather than assume a fixed rate.

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