A1 Computer fundamentals
A2 Networks
A2.1 Network fundamentals
A2.2 Network architecture
A2.3 Data transmissions
A2.4 Network security
A3 Databases
A4 Machine learning
B1 Computational thinking
B2 Programming
B3 Object-oriented programming
B4 Abstract data types (HL only)
A2.2.1 Functions and Practical Applications of Network Topologies
A2.2.2 Function of Servers (HL only)
A2.2.3 Compare and Contrast Networking Models
A2.2.4 Concepts and Applications of Network Segmentation