Previous year question paper for CN (B-TECH electronics and communication engineering 7-8th)

Computer networks

Previous year question paper with solutions for Computer networks from 2008 to 2019

Our website provides solved previous year question paper for Computer networks from 2008 to 2019. Doing preparation from the previous year question paper helps you to get good marks in exams. From our CN question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

UNIT 1. Introduction to Computer Networks:

Data Communication System and its components, Data Flow, Computer network and its

goals, Types of computer networks: LAN, MAN, WAN, Wireless and wired networks,

broadcast and point to point networks, Network topologies, Network software: concept of

layers, protocols, interfaces and services, ISO-OSI reference model, TCP/IP reference

model.

Unit 2. Physical Layer:

Concept of Analog & Digital Signal, Bandwidth, Transmission Impairments: Attenuation,

Distortion, Noise, Data rate limits : Nyquist formula, Shannon Formula, Multiplexing :

Frequency Division, Time Division, Wavelength Division, Introduction to Transmission

Media : Twisted pair, Coaxial cable, Fiber optics, Wireless transmission (radio, microwave,

infrared), Switching: Circuit Switching, Message Switching ,Packet Switching & their

comparisons.

Unit 3. Data Link Layer:

Design issues, Framing, Error detection and correction codes: checksum, CRC, hamming

code, Data link protocols for noisy and noiseless channels, Sliding Window Protocols: Stop

& Wait ARQ, Go-back-N ARQ, Selective repeat ARQ, Data link protocols: HDLC and

PPP.

Unit 4. Medium Access Sub-Layer:

Static and dynamic channel allocation, Random Access: ALOHA, CSMA protocols,

Controlled Access: Polling, Token Passing, IEEE 802.3 frame format, Ethernet cabling,

Manchester encoding, collision detection in 802.3, Binary exponential back off algorithm.

Unit 5. Network Layer:

Design issues, IPv4 classful and classless addressing, subnetting, Routing algorithms:

distance vector and link state routing, Congestion control: Principles of Congestion Control,

Congestion prevention policies, Leaky bucket and token bucket algorithms.

Unit6. Transport Layer:

Elements of transport protocols: addressing, connection establishment and release, flow control and

buffering, multiplexing and de-multiplexing, crash recovery, introduction to TCP/UDP protocols and

their comparison.

Unit 7. Application Layer:

World Wide Web (WWW), Domain Name System (DNS), E-mail, File Transfer Protocol (FTP),

Introduction to Network security

 

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