Data Communication 2021 – BSc Computer Science Part 2

Total No. of Questions: 7] [Total No. of Printed Pages: 3

Paper code: 13518
1518
B.Sc. (Computer Science) (Part 2)
Examination, 2021
Paper No. 3.3
DATA COMMUNICATION

Time: Hours] [Maximum Marks: 50

Note: Attempt all sections as directed.

Section-A

Note: Attempt any two questions:15 each

1. (a) Explain Digital data and Analog data Transmission with example.

    (b) What is Protocol? Explain the advantages of Protocol with examples.

2. (a) What is Multiplexing? Explain TDM and FDM.

    (b) Explain Error detection and Error control.

3. (a) Explain IEE Lan standards.

    (b) Describe the following :

(i) Bandwidth

(ii) Token Ring Protocols

4. (a) What DTE-DCE interface? Explain functionality of RS-232.

    (b) Explain wireless Transmission.

Section-B

Note: Attempt any one question:20 each

5. (a) Explain congestion control and Routers.

    (b) Write short notes on :

(i) Hamming Code

(ii) CRC

6. (a) What are the goals of computer network?

    (b) List the essential elements of network architecture?

7. Write short notes of the following :

(i) MODEM

(b) ISDN

(c) X.25

(d) UTP and STP

……End……

Thank You 🙂