assig2 - University of Khartoum Faculty of Engineering...

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University of Khartoum Faculty of Engineering Department of Electrical and Electronic Engineering Diploma/M. Sc. On Communication and Information Systems Data Communication Assignment No. 2 Internetworking Review Questions Question 1 (9 points): Answer the following general questions regarding computer. a) Name the five layers of the Internet protocol stack and give an example of protocol for each layer (except for the lowest layer). Do not use abbreviations or acronyms. (4 points) b) Switch tables can get large for large LANs since each station requires one entry. In order to reduce the number of entries, your colleague suggests using prefix aggregation for Ethernet MAC addresses similar to how it is used in CIDR for IP. What do you think of this suggestion? (2 points) c) What are the three most common packet sizes in the Internet? Explain why this is the case. (3 points) Question 2 (10 points): Answer the following questions regarding transport protocols and their performance. Assume a network uses 100 Mbps links with a 1 ms one-way end-to-
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