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5.1 Describe problems that can lead to poor voice and video quality



5.1 Describe problems that can lead to poor voice and video quality

  • 5.1.a Latency

  • 5.1.b Jitter

  • 5.1.c Packet loss

  • 5.1.d Bandwidth


There are several factors that can lead to poor voice and video quality, including:

  1. Network congestion: High network traffic can cause delays and jitter, resulting in poor voice and video quality.

  2. Bandwidth limitations: Insufficient bandwidth can lead to dropped packets, resulting in poor voice and video quality.

  3. Latency: High latency can cause delays in voice and video transmissions, resulting in poor quality.

  4. Jitter: Variations in delay can cause jitter, resulting in poor voice and video quality.

  5. Packet loss: Dropped packets can cause gaps in the audio and video, resulting in poor quality.

  6. Codec issues: Incompatible or poor-performing codecs can lead to poor voice and video quality.

  7. Echo: Echo can be caused by poor acoustic design or improper equipment configuration, resulting in poor voice quality.

  8. Interference: Interference from other wireless devices can lead to poor voice and video quality.

  9. Power issues: Power failures or fluctuations can lead to poor voice and video quality.

  10. Device or software configuration issues: Incorrectly configured devices or software can lead to poor voice and video quality.


It's worth noting that these problems can occur in different parts of the network, such as the endpoints, the LAN, the WAN, and the internet, and it's important to monitor the network and troubleshoot the issues as they arise. To improve voice and video quality, network administrators can use Quality of Service (QoS) techniques such as traffic shaping and prioritization, as well as implementing proper network design and capacity planning.



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