Week 4 Topic: Networks


  • describe how software and hardware communicate across a network, for example:
    • protocols, devices, applications and (Open Systems Interconnection) OSI model.

Teaching Strategies

  • Introduction to Networks
  • What is a network?
  • Why are networks important?
  • What are real-life examples of networks at work?

Whole class Discussion & Work booklet

  • What are network topologies?
  • What are the types of topologies?
  • What are the designs of each topology?
  • What are the benefits and disadvantages of each topology?

Work Booklet

  • What are network operating systems, and what is their importance in establishing cyber security?
  • The advantages and disadvantages of establishing a network


Video 4.2.1 - Computer Networking Explained

So what is a computer network? Well, first, what is a network? The definition of a network is “A group or system of interconnected people or things”

So, it would be fair to say, a computer network would be “A group or system of interconnected computers” right?

Attribution: CertBros

YouTube Link: https://youtu.be/tSodBEAJz9Y

What is a Network Topology, Computer & Networking Basics for Beginners

A network topology is the arrangement of a network, including its nodes and connecting lines. There are two ways of defining network geometry: the physical topology and the logical (or signal) topology. The physical topology of a network is the actual geometric layout of workstations. There are several common physical topologies that you will learn about in this video.

Attribution: SimplyInfo

YouTube Link: https://youtu.be/av79O3OvARM

Article to support the classroom discussion regarding network topology.
Week 1

Cyber Security Fundamentals.

Outcomes: ST5-4, ST5-5, ST5-10

Topic Links

Value of Data



Week 1 Downloads

Student Work Booklet (Word)

Student Work Booklet (Interactive PDF)

Week 3

Protecting Data 
Outcomes: ST5-4, ST5-5, ST5-10



Vulnerabilities & Risks


Student Work Booklet (word)

Week 4

Outcomes: ST5-4, ST5-5, ST5-10

Targets and Hackers




Student Work Booklet (word)