NALANDA OPEN UNIVERSITY QUESTION, 2012, M.C.A , Part-I, Paper-IX (Data Communication and Computer Networks)
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NALANDA OPEN UNIVERSITY QUESTION, 2012, M.C.A , Part-I, Paper-IX (Data Communication and Computer Networks) 2012 Time: 3 hours Full Marks: 80 Answer any five questions. All questions carry equal marks. 1. What is Networking? Why networking of devices required. Explain OSI reference model of networking. 2. Give a comparative analysis of different types of Topologies used in Networking with their advantages and disadvantages if any. 3. What is transmission mode. Explain different types of transmission mode with examples. 4. Explain different types of switching techniques with examples. Why switching is necessary? 5. Explain connection oriented and connections services. Which service is more reliable and why? Exp