hw1 - Zhou, HuanXian ID: 0225418 EE136 Instructors: Kang Xi...

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Zhou, HuanXian HW1 ID: 0225418 EE136 Instructors: Kang Xi 1. Describe the common points between virtual circuit switching and circuit switching, and the common points between virtual circuit switching and datagram switching. Common points between virtual circuit switching and circuit switching: Path stays fixed for entire connection Call setup delay Common points between virtual circuit switching and datagram switching: No dedicated transmission path Transmission of packets Transmission delay for each packet Queueing delays at switches Delays increase in overloaded networks Bandwidth is shared by all packets Overhead in each packet 2. List the major advantages and disadvantages with the layered approach to protocols. The major advantage of layered approach protocols are: Greater Compatibility between different devices, systems and networks, Better Flexibility, Scalability, Simplicity, Functionality, Mobility, Cost Effective Quality, and etc. The major disadvantage is the processing and data overhead.
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hw1 - Zhou, HuanXian ID: 0225418 EE136 Instructors: Kang Xi...

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