Understanding Cyber Security part 1 – Networks Fundamentals

Hands-on network communication – understanding the fundamentals of network security

Description

This is the first course in a six-part series on network communication, which includes the following modules: Network Fundamentals, The Power of Wireshark, TCP/IP Protocols, Network Communication Programming with Python, Web Protocols in Action, and Cyber Attack Analysis. Together, these courses provide a comprehensive foundation in networking, combining theoretical knowledge with hands-on skills for analyzing, building, and defending networked systems across a variety of real-world scenarios and technology environments.

This course introduces the evolution and key characteristics of modern networks, the TCP/IP and the OSI model, LAN architectures and topologies, and the roles of devices such as switches, bridges, and network interface cards. Core topics include common LAN topologies—bus, star, token ring, and mesh—along with their advantages, limitations, and suitability for different use cases. Students will gain a clear understanding of fundamental communication concepts, including synchronous vs. asynchronous transmission, serial vs. parallel communication, and the distinction between bandwidth, throughput, and latency, enabling them to assess and improve network performance.

By the end of the course, students will be able to explain how devices communicate within a LAN, classify and compare network components, and evaluate how they orchestrate and work together to provide complete networking solutions that meet both functional and operational requirements.

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