Download GTU B.Tech 2020 Winter 4th Sem 2140709 Computer Networks Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 4th Sem 2140709 Computer Networks Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?IV (NEW) EXAMINATION ? WINTER 2020
Subject Code:2140709 Date:11/02/2021
Subject Name:Computer Networks
Time:02:30 PM TO 04:30 PM Total Marks:56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.



Marks
Q.1
(a)
Explain function of any two layers of OSI model.
3

(b)
Explain functionality of Repeater, HUB, Bridge, Router.
4

(c)
Explain various delay which are occur in data packet
7
transmission.

Q.2
(a)
Explain LAN , WAN and internet.
3

(b)
What is IP address ? Explain sub netting with example.
4

(c)
Explain five layer of internet(TCP/IP model)and addressing
7
scheme at different layer.
Q.3
(a)
Explain bit stuffing .
3

(b)
Compare IP v4 and IP v6.
4

(c)
Explain different IP address classes.
7
Q.4
(a)
What is subnet mask? Explain with example.
3

(b)
Write a short note on slotted ALOHA.
4

(c)
Explain CRC code generation using example.
7
Q.5
(a)
Explain checksum with example.
3

(b)
Explain CSMA/CD protocol.
4

(c)
Explain connection oriented and connectionless service.
7



Q.6
(a)
Explain packet fragmentation with example.
3

(b)
Differentiate functionality of TCP and UDP protocol.
4

(c)
Explain Distance Vector routing algorithm.
7



Q.7
(a)
What is functionality of DHCP protocol?
3

(b)
How DNS protocol works?
4

(c)
Explain dijkstra (Link state) routing algorithm.
7



Q.8
(a)
What is functionality of NAT protocol?
3

(b)
Write a short note on packet broadcasting.
4

(c)
Write a short note on spanning tree.
7
***********

---