CS-68 : Computer Network
Assignment Code : BCA(5)-68/Assignment/09
Maximum Marks : 100 (weightage = 25)
Last Date of Submission : 30 th April, 2009/30th October, 2009
This assignment is having six questions. Answer all the questions.
Q. 1 (i) How do the layers of the Internet model correspond to the layers of the OSI model? (10 marks)
(ii) What is the difference between a port address, a logical address (IP address) and a physical address (as defined by LAN or WAN)?
(iii) Name some services provided by the application layer in the Internet model. (5 marks)
Q. 2 Describe the goals of multiplexing and two main multiplexing techniques.
Q. 3 (i) List three design goals of ATM.
(ii) Describe the architecture of an ATM network.
(iii)What is the difference between two types of connections: PVC and SVC used in ATM? (15 marks)
Q. 4 (i) List the advantages of broadband coaxial cable over twisted pair.
(ii) What is the significance of twisting in twisted pair cable?
(iii) How do guided media differ from unguided media?
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