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  • OCR GCSE Computer Science J277 (from 2020)
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  • Teacher Pack: Unit 1.3 Computer Networks, Connections and Protocols J277 (from 2020)

Teacher Pack: Unit 1.3 Computer Networks, Connections and Protocols J277 (from 2020)

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The resources within this Teacher Pack cover all aspects of the specification in relation to OCR GCSE Computer Science J277 (from 2020) component 1.3.


It includes:


·   Teaching PowerPoint Presentations (including checkpoint questions and answers)

  • Part 1 – Networks & Topologies (66 slides)
  • Part 2 - Wired & Wireless Networks, Protocols & Layers (45 slides)


·   Student PowerPoint Presentations (Including checkpoint questions, but omits the answers)

  • Part 1 – Networks & Topologies
  • Part 2 - Wired & Wireless Networks, Protocols & Layers

·   Homework/Classwork Activities (+ mark schemes)

  • LANS & WANS
  • Wired & Wireless Networks
  • Star & Mesh Topology
  • Network Protocols
  • The Concept of Layers


·   End of unit tests (+ mark schemes)

  • Test 1 - Networks & Topologies
  • Test 2 - Wired & Wireless Networks, Protocols & Layers


Content Covered:

Types of network:

  • LAN (Local Area Network)
  • WAN (Wide Area Network)

Factors that affect the performance of networks

The different roles of computers in a client-server and a peer-to-peer network

The hardware needed to connect stand-alone computers into a Local Area Network:

  • Wireless access points
  • Routers
  • Switches
  • NIC (Network Interface Controller/Card)
  • Transmission media

The Internet as a worldwide collection of computer networks:

  • DNS (Domain Name Server)
  • Hosting
  • The Cloud
  • Web servers and clients

Star and Mesh network topologies


Modes of connection:

  • Wired - Ethernet
  • Wireless Wi-Fi & Bluetooth

Encryption

IP addressing and MAC addressing

Standards

Common protocols including:

  • TCP/IP (Transmission Control Protocol/Internet Protocol)
  • HTTP (Hyper Text Transfer Protocol)
  • HTTPS (Hyper Text Transfer Protocol Secure)
  • FTP (File Transfer Protocol) o POP (Post Office Protocol)
  • IMAP (Internet Message Access Protocol)
  • SMTP (Simple Mail Transfer Protocol)

The concept of layers

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  • Home
  • About Us
    • Reviews
  • Teaching Resources
    • GCSE Resources >
      • OCR GCSE Computer Science J277 (from 2020)
      • AQA GCSE Computer Science 8525 (from 2020)
      • Edexcel GCSE Computer Science 1CP2 (from 2020)
    • Professor Cody
    • Python Programming
    • Books >
      • Professor Cody Book
      • Python - A Nuts and Bolts Guide for Teens
      • OCR CS Exam Revision Workbook
    • KS3 Resources
    • Freebies
  • Blog
  • Video Tutorials
    • Code 5 Christmas Games using Scratch
    • Code 8 Games using Scratch
    • Learn to Code using Scratch
    • Learn to Program using Python
    • Programming Concepts
    • Code 2 Halloween Games using Scratch
    • Picoh the Robot
  • Contact