Enrollment No. ...........
END TERM EXAMINATION
THIRD SEMESTER (BCA) JANUARY-FEBRUARY 2023
Paper Code: BCA-201
Subject: Computer Networks
Time: 3 Hours
Maximum Marks: 75
Note: Attempt five questions in all including Q.No. 1 which is compulsory.
- Q1. Write short notes of the following (Any five): 5x5=25
- (a) What do you mean of topology in Networking? 5
- (b) Explain Attenuation and Distortion. 5
- (c) How Synchronous and Asynchronous TDM? 5
- (d) Explain the difference between single bit error & burst error. 5
- (e) How IPv4 is different from IPv6? 5
- (f) Differentiate between "packet switching" & "circuit switching". 5
- (g) Differentiate between "single bit error" & "burst error". 5
UNIT-I
- Q2. (a) Describe the components of data communication along with diagram. of each layer. 7.5
- (b) Explain OSI model. write the functions and Protocols of each layer. 5
- Q3. (a) Explain Transmission Impairment in detail. 7.5
- (b) Define networking and its goals. 5
UNIT-II
- Q4. (a) What do you understand by Multiplexing? Describe WDM & FDM. 5
- (b) Explain Hamming Code with the help of an example. 7.5
- Q5. (a) Define Bit-Stuffing. How it is different from character stuffing? 5
- (b) Explain any three error detection methods? 7.5
UNIT-III
- Q6. (a) What do you understand by Routing? Differentiate between adaptive and non-adaptive routing. 7.5
- (b) Describe repeater,router, hub, bridge & gateway. 5
- Q7. (a) Differentiate between Distance Vector Routing & Link State Routing. 7.5
- (b) What is subnetting? Describe Unicast Routing Protocols. 5
UNIT-IV
- Q8. (a) Explain Connection Management with the help of a diagram. 7.5
- (b) Compare the TCP header with UDP header. 5
- Q9. (a) Describe any five protocols present on application layer with their functionality. 7.5
- (b) Discuss the design issue of session layer. 5