Computer Networks Fundamentals

This beginner-level course introduces the fundamental concepts of computer networks. It provides an overview of network architectures, network nodes, and the most common protocols associated with each layer of the ISO/OSI model. The course is designed to help learners understand how data is transmitted, managed, and secured within modern computer networks.
It is part of the preparatory refresher courses for the Cybersecurity Academy, but it can also be taken independently as a standalone course for beginners.

This course will cover the following topics:

• Introduction to computer networks: channel and packet commutation
• ISO/OSI reference model
• Network standards
• Physical and Data Link layers: wired and wireless Ethernet, network topologies, addressing, and commutation devices
• Network layer: IP addressing, ARP, DHCP, multicast, and NAT
• Transport layer: TCP, UDP, SCTP, and ICMP
• Secure connections, VLANs, and VPNs

By the end of the course, participants will have knowledge of:

• Computer network architecture and network nodes
• ISO/OSI model layers and commonly used protocols
• Basic network administration concepts
• Secure communication mechanisms

• Presentation
• Hands-on exercises