January 2012
Intermediate to advanced
312 pages
11h 2m
English
Content preview from Express Learning: Data Communications and Computer Networks
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11
Quality of Service and Protocols
1. What is meant by quality of service? What are its characteristics?
Ans: A stream of packets being transmitted from the source node to destination node is referred to as the flow. Each flow is characterized by a certain set of performance parameters such as reliability, jitter, delay and bandwidth. The ability of a network to deliver the flow of packets to the destination node with the defined set of performance parameters is defined as its quality of service (QoS). The characteristics that a flow seeks to attain are as follows:
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Reliability: This characteristic ensures that no packet is damaged or lost ... |
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