B.TECH - Semester 8 computer networks Question Paper 2021 (feb)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- What is a man?
- Explain the terms bandwidth and data rate.
- What is the leaky bucket algorithm?
- Why there is no need for CSMA/CD on a full duplex Ethernet LAN?
- What is the significance of the token holding time?
- Differentiate between static and dynamic routing.
- What is a URL?
- How is IPv6 better than IPv4?
- What is the purpose of a firewall?
- How does slotted. ALOHA perform better than ALOHA? $$ \text { ( } 10 \times 2=20 \text { Marks) } $$ Answer any one question from each module.
- (a) Discuss in detail the architecture of the OSI reference model. 12
- (b) What is the principal difference between connection-oriented and connectionless communication? 4
- (c) Differentiate between circuit switching and packet switching. 4
- (a) Discuss the architecture of the WAN network.
- (b) Explain the service primitives of the network.
- (c) Discuss in detail the architecture of the TCP/IP reference model.
- (a) Discuss any one collision free protocol.
- (b) Explain the go-back N protocol in detail.
- (c) How does CSMA/CD detect and handle collisions?
- (a) Design a three stage cross bar switch network for $\mathrm{N}=8, \mathrm{n}=2$ and $\mathrm{k}=2$ and discuss about its blocking condition.
- (b) Explain IEEE 802.3 in detail.
- (c) Discuss in brief the transmission Impairments. 8 6
- (a) Discuss the Link state routing algorithm in detail 8
- (b) Write short notes on internetworking issues. 6
- (c) Discuss hierarchical routing. 6 Or
- (a) Differentiate Virtual circuit and datagram connection. 6
- (b) What is meant by congestion? List the general principles of congestion control. 6
- (c) Explain the distance vector routing in brief. 8 Module - IV
- (a) Explain the Domain Naming System. 5
- (b) Explain in detail how connections are established in TCP. 5
- (c) Explain in detail the Simple Network Management Protocol. 10 Or
- (a) Explain the explain in detail the different categories of cryptography. 10
- (b) Explain the architecture of an email system in detail. 8
- (c) What is the purpose of the sequence number in a TCP packet? 2 ( $4 \times 20=80$ Marks)