JNTU Kakinada B-Tech 4-1 COMPUTER NETWORKS R13 March 2018 Question Paper

IV B.Tech I Semester Supplementary Examinations, February/March – 2018
COMPUTER NETWORKS (Electronics and Communication Engineering)Time: 3 hours Max. Marks: 70
Question paper consists of Part-A and Part-B
Answer ALL sub questions from Part-A
Answer any THREE questions from Part-B
*****

PART ?A (22 Marks)1. a) What is the difference between LAN and WAN? [3]
b) Explain about the Radio Transmission. [3]
c) What is the basic principle of learning bridge? [4]
d) Describe Optimality Principle for Routing. [4]
e) Explain about the TCP Congestion Control. [4]
f) Discuss about the XHTML (eXtended HyperText Markup Language) [4]

PART ?B (3×16 = 48 Marks)2. a) Differentiate OSI reference model with the TCP/IP reference model. [8]
b) Discuss briefly about the original ARPANET design [8]

3. a) What are the different classes of UTP? Explain. [8]
b) Describe briefly about the circuit-switched networks. [8]

4. a) What is the need of Flow control? Explain the common approaches for flow
control in data link layer.
[8]
b) Explain how slotted ALOHA solves the problem of Channel allocation. [8]

5. a) Illustrate Routing of Packets within Virtual Circuit Subnet. [8]
b) Classify the static and dynamic routing algorithms? Explain the basic concept
of flooding.
[8]

6. a) With neat sketch, explain different layers of ATM. [6]
b) Draw and explain each field in the TCP Segment header. [10]

7. a) What is DNS? What resource records are associated with it? Explain. [8]
b) What are the five basic functions supported in e-mail systems? Explain. [8]

Code No: RT41042
Set No. 1
R13
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