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Understanding Cybersecurity part 1 - Networks Fundamentals
Rating: 4.6 out of 5(162 ratings)
3,493 students

Understanding Cybersecurity part 1 - Networks Fundamentals

Hands-on network communication - understanding the fundamentals of network security
Created byEran Bineth
Last updated 4/2026
English
English [Auto],

What you'll learn

  • Build an in-depth understanding of network communications covering the OSI model and its protocols
  • Understand the various features and network topologies that comprise a Local Area Network (LAN)
  • Interpret MAC addressing and its role in local network communication, and distinguish between unicast, broadcast, and multicast traffic in packet captures.
  • Describe the role of ARP in mapping logical to physical addresses within a LAN.
  • Thoroughly understand the flow of information from (or to your) cellular phone or laptop over the web

Course content

3 sections • 8 lectures • 1h 56m total length

  • Welcome to Understanding Cybersecurity course set9:22

    Explore the five-part Understanding Cybersecurity core set, from OSI fundamentals and ARP spoofing to TCP/IP, Python networking with sockets, and web threats like SQL injection and XSS.

  • Introduction to the Cybersecurity course part 11:37

    Explore the evolution of modern networks, OSI model basics, LAN topologies (star, bus, mesh, token ring), and core devices (NICs, repeaters, switches, routers) and how they defend and operate networks.

Requirements

  • Entry level course, no prerequisites.

Description

This is the first course in a five-part series on network communication, which includes the following modules: Network Fundamentals, The Power of Wireshark, TCP/IP and beyond!, Network Communication Programming with Python, and Cyber Attack Analysis.

These set of courses is presented under the slogan “Understanding Cybersecurity” and are intended for every high school and university student, seeking knowledge and knowhow in cybersecurity. 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. It strives to facilitate learning by thinking and understanding, and to promote students' proficiency in handling complex ideas and mastering cybersecurity software projects.

This first course Understanding Cybersecurity part 1 - Network Fundamentals 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 (NICs). Core topics include fundamental communication concepts such as bandwidth and latency, network synchronicity and parallelism, as well as common LAN topologies and architectures, along with their advantages, limitations, and suitability for different use cases.

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.

visit understanding-cybersecurity-part-2-the-power-of-wireshark for the next course in the series

Who this course is for:

  • This course is intended for every high school and university student, seeking knowledge and knowhow in cybersecurity. It strives to facilitate learning by thinking and understanding, and to promote students' proficiency in handling complex ideas and mastering cybersecurity software projects.

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