B.TECH - Semester 8 computer networks Question Paper 2013 (apr)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- What are two reasons for using layered protocols? What is one possible disadvantage of using layered protocols?
- What does "negotiation" mean when discussing network protocols? Give an example.
- A bit string, 0111101111101111110, needs to be transmitted at the data link layer. What is the string actually transmitted after bit stuffing?
- Consider the delay of pure ALOHA versus slotted ALOHA at low load. Which one is less? Explain your answer.
- What are the responsibilities of network layer?
- What are the services provided by transport layer?
- Differentiate between TCP and UDP.
- State the purpose of SNMP.
- What do you mean by carrier sense multiple access?
- What is a datagram? PART - B Answer any one full question from each Module.
- (a) Describe OSI reference model. 15
- (b) What are the applications of computer networks? 5 OR
- (a) Explain different classification of networks. Give characteristics of each type. 12
- (b) Distinguish between connection oriented and connectionless services. 8 Module - II
- Briefly explain the CSMA/CD method with necessary diagrams. $\mathbf{2 0}$ OR
- (a) Describe the guided and unguided transmission media with examples. 12
- (b) Explain IEEE 802.3 protocol for LAN. 8 Module - III
- (a) Explain link state routing. 12
- (b) What are the design issues with network layer of OSI model? 8 OR
- (a) How distance vector routing works? Explain with neat diagram. 10
- (b) Compare virtual circuit and datagram network. 10 Module - IV
- (a) Explain various elements of transport protocols. 10
- (b) Describe the flow contract mechanisms. 10 OR
- Write short notes on the following: (a) SNMP
- Write short notes on the following: (b) IPV6
- Write short notes on the following: (c) Public key cryptography.