Course Overview
This lesson provides a comprehensive introduction to computer networking and its essential components. Students will begin with the basics of data communication, including how data is transmitted across networks, followed by an exploration of different types of computer networks such as LAN, WAN, MAN, PAN, and the Internet.
The lesson also introduces key networking devices like hubs, switches, routers, and modems, and explains their roles in network infrastructure. Students will learn about network addressing, including IP addressing and MAC addresses, and understand how devices are uniquely identified in a network.
A detailed breakdown of the OSI reference model and various network protocols (such as TCP/IP, HTTP, DNS, FTP, and more) is included to help students understand how data flows in layered network systems.
Finally, the lesson covers network security, common threats (e.g., malware, phishing, denial of service attacks), and basic methods of protecting networks through firewalls, encryption, and secure configurations.
By the end of this lesson, students will be able to:
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Understand how data communication works in computer networks.
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Identify different types of networks and their uses.
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Describe the purpose of key networking devices.
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Apply knowledge of network addressing and protocols.
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Analyze the OSI model and the role of each layer.
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Recognize security threats and methods to secure networks.
