B.TECH - Semester 6 computer networks Question Paper 2013 (apr)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- What are the various types of ICMP messages?
- A bit string, 01111011111101111110, needs to be transmitted at the data link layer. What is the string actually transmitted after bit stuffing?
- Draw the frame format of Ethernet.
- Mention the transfer modes of HDLC.
- Compare UDP with TCP. ( $\mathbf{5} \boldsymbol{\times} \mathbf{4} \boldsymbol{=} \mathbf{2 0}$ Marks) Answer one full question from each module. Each carries 20 marks.
- (a) Compare LAN, MAN and WAN with all characteristics 10
- (b) With neat diagram, write the functionalities of each layer of OSI model. 10
- (a) Analyse the performance of noisy channel protocols with an example.
- (b) Discuss about the Network service Primitives.
- (a) Describe about Evolution of Ethernet. Explain the categories of standard 10 Ethernet.
- (b) With necessary diagram explain Djikstra's shortest path routing algorithm 10 with an example
- (a) Describe the link state routing protocol with an example network. Show the steps in building routing table at a node.
- (b) Explain OSPF to construct the routing table with an example
- (a) In classful addressing how is an IP address in class A. Class B and Class C divided?
- (b) Given the address 23.56 .7 .91 and the default class $A$ mask, find the beginning address (network address).
- (c) How is BGP able to avoid the count-to-infinity problem.
- (d) How is ARP and RARP implemented? OR
- Explain the following Protocols (a) IGMP
- Explain the following Protocols (b) IR6
- Explain the following Protocols (c) BootP
- (a) Mention the two types of multiplexing used in the transport layer. Also specify the significance of multiplexing in this layer.
- (b) Compare the TCP congestion control and avoidance technique in transport layer.
- (a) Explain the role of DNS on computer network. Analyse the applications of DNS.
- (b) Discuss how the Simple Mail Transfer Protocol (SMTP) is useful in electronic mail. ( $\mathbf{4} \boldsymbol{\times} \mathbf{2 0} \boldsymbol{=} \mathbf{8 0}$ Marks)