400IT: Securing a First Class in IT Infrastructure & Ethics

Published: March 10, 2026  |  Professional Development

The 400IT module acts as the foundation for your entire career. While it covers "Professional Development," the technical component regarding IT Infrastructure and the Ethics of Computing is where most students lose easy marks.

1. IT Infrastructure and Networking

When you are asked to design or describe an IT infrastructure, you must think in layers. Do not just talk about computers; talk about the OSI Model, the servers (On-premise vs. Cloud), and the security protocols (Firewalls, VPNs).

• The Distinction Tip: Use professional diagrams (like Cisco Packet Tracer exports) to illustrate your network topology. Clearly explain the hardware choices—why use a Layer 3 Switch over a standard Router for a local business?

2. Professional Ethics and BCS Standards

A major part of 400IT is the British Computer Society (BCS) Code of Conduct. You will likely be given a case study where an ethical line is crossed.

• The Distinction Tip: Do not just give your opinion. Reference specific sections of the BCS Code of Conduct (e.g., "The Public Interest" or "Duty to Relevant Authority"). Link these back to current UK laws like the Data Protection Act 2018 (GDPR).