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Computer Networks — Syllabus

Jharkhand Board · Class 12 · Computer Science

What Computer Networks covers in Jharkhand Board Class 12 Computer Science: 4 topics, for the 2026-27 session.

44 questions92 flashcards5 concepts

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A diagram showing how a repeater extends the range of a communication system by receiving, amplifying, and retransmitting signals.
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4 Topics · Jharkhand Board Class 12 Computer Science · 2026-27

Topics in Computer Networks

1

1. Basics of Computer Networks

  • A network is a group of two or more similar things or people interconnected with each other.
  • A computer network is an interconnection among two or more computers or computing devices.
  • A network allows sharing of data and resources such as printers and storage.
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2. Evolution of Networking

  • ARPANET was a 1960s U.S. Department of Defence research project.
  • ARPANET connected academic and research institutions for scientific collaboration.
  • The first message was communicated between UCLA and Stanford Research Institute.
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3. Types of Networks

  • Computer networks are broadly classified as PAN, LAN, MAN, and WAN.
  • PAN covers about 10 metres.
  • A mobile phone connected to a laptop through USB forms a wired PAN.
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4. Networking Devices

  • Common networking devices include modem, Ethernet card or NIC, RJ45, repeater, hub, switch, router, and gateway.
  • A modem converts between analog signals and digital bits.
  • The sender's modem modulates digital data into analog signals.

Key Concepts

Central concept: Computer Networks

Introduction to Computer NetworksEvolution of NetworkingTypes of NetworksNetwork DevicesNetworking TopologiesIdentifying Nodes in a Networked CommunicationInternet, Web and the Internet of ThingsDomain Name System

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Frequently Asked Questions

What are the important topics in Computer Networks for Jharkhand Board Class 12 Computer Science?
Key topics in Computer Networks include Basics of Computer Networks, Evolution of Networking, Types of Networks, Networking Devices. Study these first, then practise questions on each for the Jharkhand Board Class 12 board exam.
How should I revise Computer Networks for the Jharkhand Board Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Computer Networks. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All Jharkhand Board Class 12 Computer Science Syllabus

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