MULTIMEDIA AND QUALITY OF SERVICE
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Soft QoS
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Intserv
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DiffServ
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best effort
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Detailed explanation-1: -There are three models for implementing QoS. QoS is implemented in a network using either IntServ or DiffServ. IntServ provides the highest guarantee of QoS, it is very resource-intensive, and therefore, not easily scalable. DiffServ is less resource-intensive and more scalable.
Detailed explanation-2: -DiffServ: Arguably the most commonly used QoS model, DiffServ, works by assigning value to each traffic type. Administrators set a DSCP (differentiated services code point) value ranging from zero to 63 for each traffic type to classify it according to priority and group traffic according to traffic classes (TCs).
Detailed explanation-3: -DiffServ provides high scalability and flexibility in implementing QoS. Network devices recognize traffic classes and provide different levels of QoS to different traffic classes.
Detailed explanation-4: -Differentiated Services. The DiffServ model provides multiple levels of service that satisfy differing QoS requirements.