This is the third course in the Google Cybersecurity Certificate. In this course, you will explore how networks connect multiple devices and allow them to communicate. You'll start with the fundamentals of modern networking 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, allow your computer to send and receive information on the Internet. Then, you'll learn about network security. Organizations often store and send valuable information on their networks, so networks are common targets of cyber attacks. By the end of this course, you'll 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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Get started with the course - 00:00
Network communication - 00:08:19
Local and wide 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
Secure 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
OS hardening - 00:55:52
Network hardening - 01:00:10
Cloud hardening - 01:03:50
Review: Security hardening - 01:05:50
Congratulations on completing Course 3! - 01:06:47

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The Basics of Networks & Network Security | Google Cybersecurity Certificate
   • Internet Networks & Network Security ...