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ProgramsBSC CSITSemester 4Computer Networks 2078

BSC CSIT Semester 4 – Computer Networks 2078 TU Final Exam Questions & Answers

12 Questions•75 Marks•TU

Tribhuvan University

Institute of Science and Technology

2078

Bsc CSIT / Semester 4 / Science

Computer Science and Information Technology

Computer Networks

Full Marks: 60 + 20 + 20

Pass Marks: 24 + 8 + 8

Time: 3 Hours

Candidates are required to give their answers in their own words as far as practicable.

The figures in the margin indicate full marks.

SECTION A

Attempt any TWO question.

1

What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.

2

What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from G- Back-N ARQ?

3

Explain link state routing with example.

SECTION B

Attempt any EIGHT question.

4

Explain client/server network. How is it different from peer to peer network?

5

What is CSMA/CD? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?

6

What subnet ID and broadcast address of each subnet if you divide a class B network (150.10.0.0 – 150.10.255.255) in 4 different subnets. What is the new subnet mask?

7

Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.

8

What is virtual circuit network? Explain ATM as a virtual circuit wide area network.

9

What is routing table? Differentiate static routing table with dynamic roting table.

10

What is open-loop congestion control? Compare it with closed-loop congestion control.

11

What are the different approaches for multimedia streaming? Explain.

12

Write short note on (any two):
a. Blackbone network
b. ISDN
c. ALOHA

Showing 12 questions

*** END OF QUESTION PAPER ***

Exam Years

Computer Networks 2078 TU Final Past Questions

What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.

Marks: 10

Chapter: Unit 2: Physical Layer and Network Media (4Hrs.)

Transmission Media Definition: Transmission media are the physical pathways through which data is transmitted from sender to receiver in a network. --- Types of Transmission Media 1. Guided Media (

What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from G- Back-N ARQ?

Marks: 10

Chapter: Unit 3: Data Link Layer (8Hrs.)

Flow Control Definition: Flow control is a technique used in data communication to ensure that the sender does not overwhelm the receiver by sending data faster than it can be processed. It prevents

Explain link state routing with example.

Marks: 10

Chapter: Unit 4: Network Layer (10Hrs.)

Link State Routing Definition: Link State Routing (LSR) is a routing algorithm where each router maintains a complete map (topology) of the network. Each router calculates the shortest path to every

Explain client/server network. How is it different from peer to peer network?

Marks: 5

Chapter: Unit 1: Introduction to Computer Network (6Hrs.)

Client/Server Network Definition: A Client/Server network is a network architecture where a central server provides resources or services (like files, printing, databases) to multiple clients. Clien

What is CSMA/CD? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?

Marks: 5

Chapter: Unit 3: Data Link Layer (8Hrs.)

CSMA/CD (Carrier Sense Multiple Access with Collision Detection) Definition: CSMA/CD is a network protocol used in Ethernet to control access to the shared communication medium. It helps devices avo

What subnet ID and broadcast address of each subnet if you divide a class B network (150.10.0.0 – 150.10.255.255) in 4 different subnets. What is the new subnet mask?

Marks: 5

Chapter: Unit 4: Network Layer (10Hrs.)

Subnetting a Class B Network Given: - Network: 150.10.0.0 – 150.10.255.255 (Class B) - Number of required subnets: 4 --- Step 1: Determine new subnet mask - Class B default subnet mask: 255.255

Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.

Marks: 5

Chapter: Unit 4: Network Layer (10Hrs.)

IPv6 Address Structure and Comparison with IPv4 1. Structure of IPv6 Address - Length: 128 bits (16 bytes) - Notation: Written as eight groups of four hexadecimal digits separated by colons (:).

What is virtual circuit network? Explain ATM as a virtual circuit wide area network.

Marks: 5

Chapter: Unit 4: Network Layer (10Hrs.)

Virtual Circuit Network and ATM 1. Virtual Circuit Network - A virtual circuit network is a type of packet-switched network where a predefined path is established between sender and receiver before d

What is routing table? Differentiate static routing table with dynamic roting table.

Marks: 5

Chapter: Unit 4: Network Layer (10Hrs.)

Routing Table and Its Types 1. What is a Routing Table? A routing table is a data structure maintained by a router or a host to determine the best path for forwarding packets to their destination.

What is open-loop congestion control? Compare it with closed-loop congestion control.

Marks: 5

Chapter: Unit 5: Transport Layer (6Hrs.)

Open-Loop vs Closed-Loop Congestion Control 1. Open-Loop Congestion Control Definition: Open-loop congestion control prevents congestion before it happens. It uses policies and flow control mechani

What are the different approaches for multimedia streaming? Explain.

Marks: 5

Chapter: Unit 7: Multimedia &Future Networking (4Hrs.)

Multimedia Streaming Approaches Multimedia streaming is the delivery of audio and video data over a network in real-time. There are two main approaches: --- 1. Pull-Based Streaming (On-Demand Streami

Write short note on (any two):\ a. Blackbone network\ b. ISDN\ c. ALOHA

Marks: 5

Chapter: Unit 1: Introduction to Computer Network (6Hrs.)

Short Notes (Any Two) --- a. Backbone Network Definition: A backbone network is the central part of a network that connects various sub-networks (LANs, MANs) and provides a path for the exchange of

About Computer Networks Past Questions

This page contains the complete 2078 TU Final examination paper for Computer Networks , part of the BSC CSIT Semester 4 curriculum. All questions are from official Tribhuvan University (TU) exam papers.

How to Use This Resource

  • Practice each question thoroughly before checking the answer
  • Use the answers as reference to understand the expected format
  • Time yourself to simulate exam conditions
  • Review chapter concepts if you struggle with any question
  • Link to specific questions using #q1, #q2, etc. in the URL

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Computer Networks 2078 TU Final past questions with answers for BSC CSIT students in Nepal. Prepare for Tribhuvan University (TU) exams with our comprehensive question bank and model answers.

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