What is QoS in Networking? | Quality of Service Explained
QoS (Quality of Service) is a networking feature that controls how traffic is handled to ensure performance and reliability.
It helps by:
Prioritizing critical traffic (like voice or video calls)
Reducing latency, jitter, and packet loss
Managing bandwidth for fair usage
Example: In a busy network, QoS makes sure your Zoom call stays clear while background downloads get lower priority.
Think of it like VIP lanes on a highway — important traffic gets through first.
Essential for CCNA learners, IT students, and network engineers.
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