This is the third course in the Google Cybersecurity certificate. In this course, you will learn how networks connect multiple devices and allow them to communicate. You'll start with the fundamentals of modern network operations and protocols. For example, you'll learn about the Transmission Control Protocol/Internet Protocol (TCP/IP) model and how network hardware, like routers and modems, allows your computer to send and receive information over the Internet. Next, you will learn about network security. Organizations often store and send valuable information across their networks, making them frequent targets for cyberattacks. By the end of this course, you will be able to recognize network-level vulnerabilities and explain how to secure a network using firewalls, system hardening, and virtual private networks.

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Start class – 00:00
Network communication – 00:08:19
Local and Wide Area Network Communication – 00:14:55
Review: Network Architecture – 00:17:18
Introduction to Network Protocols – 00:17:56
System Identification – 00:23:46
Review: Network Operations – 00:36:32
Introduction to Network Intrusion Tactics – 00:37:22
Securing networks against denial of service (DoS) attacks – 00:39:14:
Network attack tactics and defense – 00:43:50
Review: Secure against network intrusions – 00:51:02
Introduction to Security Hardening – 00:51:45
Hardening the operating system – 00:55:52
Network strengthening – 01:00:10
Cloud Strengthening – 01:03:50
Review: Strengthening security – 01:05:50
Congratulations, you have completed course 3! – 01:06:47

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The Basics of Networking and Network Security | Google Cybersecurity Certificate
https://youtu.be/NIRXtMg-0z8

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