Unit 19: Computer Networking

Learn how networks work, then design, build, test and evaluate one for a real client. No account needed.

1. Assignment guide

What your two assignments ask for, what each grade means in plain English, and what evidence to hand in.

2. Learn

16 short lessons with diagrams, key terms, Packet Tracer tasks and check-yourself questions.

3. Workbook + tutor

A practice activity for every lesson, saved on your device, with the AI study tutor to help.

4. Practicals

Step-by-step labs: build LANs, configure routers and switches, set up servers and Linux permissions.

5. Assignment builder

Plan each task, use the IP, test-plan and permissions planners, and get feedback from the AI assignment coach.

6. Quizzes

Instant-marked checks on network types, the OSI model, ports, IP addressing and devices.

7. Videos

11 short videos, from how packets travel (Warriors of the Net) to a real automated port and a hacker’s attack.

How to use this course

  1. Read the Assignment guide first so you know where you are heading.
  2. For each topic: read the lesson, try it in Packet Tracer, then complete the workbook activity.
  3. Check yourself with the quizzes.
  4. When your teacher issues an assignment, open the Assignment builder to plan, keep your evidence organised and get feedback on your drafts.
Your assignments must be your own work. The AI tutor and coach explain, question and give feedback; they will not write your answers. Anything the AI helps you with is recorded in your AI-use log, which you can hand in with your work. Do not type your name or personal details into the tutor.

Work saves in this browser only. Use the download buttons to keep a backup before changing computers.

Also on this site: Unit 2: Fundamentals of Computer Systems · Unit 7: Digital environments (T Level) · Unit 8: Security (T Level) · Unit 12: Software Development