Data Communication 2018 – BSc Computer Science Part 2

Note: Attempt any five questions in all. Question No. 1 is compulsory.

1. (a) Define Data Communication. What is the component of Data Communication?3

(b) Explain the application of Data Communication.3

2. (a) Differentiate single mode and multimode optical fiber.4

(b) Explain the effect of transmission impairments in the communication.3

3. (a) Discuss the various design issues of data link layer.4

(b) Explain the error control and flow control.3

4. (a) Describe the following terms : 4

(i) Line Configurations

(ii) Analog and Digital Data Transmission

(b) Explain High Level Data Link Control in briefly.3

5. (a) Describe frequency division multiplexing with example.4

(b) Explain Statustical time division multiplexing with the help of diagram.3

6. (a) Explain advantages and disadvantages of fiber-optic cables.4

(b) Explain congestion control with the help of diagram.3

7. Write short notes on any two of the following: $3\frac{1}{2}$ each

(a) Error detection

(b) X.25

……..End……..

Thank You!