Punjab Technical University 2006-3rd Sem M.C.A -DATA COMMUNICATION AND COMPUTER NETWORK - Question Paper

DATA COMMUNICATION AND
COMPUTER NETWORK
MCA – 203,IIIRD Semester (2096)

Time: 3 Hours Max Marks:75

Note: Part A consists of Fifteen (15) ques. and is compulsory. Attempt any 9 (9) ques. from part B.


PART A
1. How is WDM similar to FDM? How are they different?
2. Describe the difference ranging from an analog switched service and analog leases service?
3. Define the 2 kinds of TDM?
4. Define the 3 kinds of digital services available to telephone customers?
5. How is VRC related to LRC?
6. What do you understand by network hardware and network software?
7. Describe the various design problems in data link layer?
8. What do you understand by term routing?
9. Describe about the packet switching?
10. How does a modem work?
11. Define the term congestion?
12. Describe about flooding?
13. What do you understand by flow control?
14. What are the elements of transport protocol?
15. List the steps involved in creating checksum?


Part B
1. Describe the difference ranging from TCP/IP and OSI reference model?
2. Describe the difference ranging from a protocol using Go Back N and a selective repeat?
3. What do you understand by HDLC?
4. Describe about leaky bucket algorithm?
5. Explain about simplex stop and wait protocol?
6. Explain about circuit switching with example?
7. What do you understand by TCP connection management?
8. Explain about the various fault detection method?
9. Describe the difference ranging from analog and digital?
10. Calculate the redundancy bit by hamming code 1001101?
11. Explain the difference ranging from synchronous and asynchronous transmission?
12. What do you under by IP address?

Earning:   Approval pending.