Computer Networks Past Paper PDF - 2024

Subject Code 050020504 Subject Name Computer Networks Type Theory Subject Coordinator Lajja Shah Subject Faculties Lajja Shah Dhara Panchal...

Subject Code 050020504 Subject Name Computer Networks Type Theory Subject Coordinator Lajja Shah Subject Faculties Lajja Shah Dhara Panchal Ananya Yaduvanshi Q. No. Unit I : Introduction, Network Terminologies and The Physical Link layer 1 Explain computer networks based of scope, communication type and connection type. 2 Differentiate between broadcast and point to point networks. Give any two important differences 3 What is meant by LAN, WAN, PAN? 4 What is OSI Model? List down all the layers and explain any 1 of them. 5 What are the duties of Physical Layer and Data link layer? 6 Define following terms: Amplitude, Frequency, Wavelength, Bitrate, Baud rate, signal 7 Short note on Fiber optics cable 8 Short note on Twisted pair cables. 9 What is Coaxial cable? Compare twisted pair cables and coaxial cables. 10 Explain all the layers of OSI model. 11 Differentiate OSI and TCP/IP model. 12 List different kinds of network software. Q No. Unit II : The Data Link Layer 1 Why framing is required? Explain any one method with example 2 Explain Byte stuffing with example. 3 Explain Bit stuffing with example. 4 Explain Sliding window protocol using Go Back N and show how it deals with lost frame, duplicate frames and lost acknowledgement 5 Why selective repeat is better than Go back N protocol? Give the reasons 6 Compute the hamming code for bit pattern 1100001 7 What is advantage of piggybacking 8 Define Flow Control and any one Flow control protocol. 9 Explain Stop and wait ARQ protocol. 10 Show the problem with character count method of framing. How can we eliminate such problem using a flag byte? 11 What is parity bit and how is it used? 12 What is CRC? Give one example to explain the concept. 13 What is Checksum? Explain in detail with example. 14 What is cumulative acknowledgement? How is it better than single acknowledgement? 15 What are the duties of Data Link layer? Q No. Unit III : MAC Protocol 1 Explain Ad-hoc and infrastructure modes. 2 What is CSMA/CD? Explain working of it. 3 What is ALOHA protocol? Explain in detail. 4 Explain Slotted ALOHA. How it differs from ALOHA? 5 Explain Ethernet frame structure.