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

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QuestionQ45

Media and QoS

Which two technical factors make QoS necessary for a video deployment?

Choose two
  • A bursty behavior of video traffic
  • B variable bit rate of the video stream
  • C provisioned bandwidth of the link
  • D low response time between endpoints
Explanation

Video traffic is typically bursty and variable-bit-rate because compressed video frame sizes and packet rates vary with the amount of motion in the image. QoS mechanisms manage these fluctuating traffic demands and help preserve video quality when network resources are shared. Cisco Video Quality of Service (QoS) Tutorial

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