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Connect and Protect: Networks and Network Security
  • Level Foundation
  • Duration 15 hours
  • Course by Google
  • Offered by

About

This is the third course in the Google Cybersecurity Certificate. These courses will equip you with the skills you need to apply for an entry-level cybersecurity job. You’ll build on your understanding of the topics that were introduced in the second Google Cybersecurity Certificate course. 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. Google employees who currently work in cybersecurity will guide you through videos, provide hands-on activities and examples that simulate common cybersecurity tasks, and help you build your skills to prepare for jobs. Learners who complete this certificate will be equipped to apply for entry-level cybersecurity roles. No previous experience is necessary. By the end of this course, you will: - Describe the structure of different computer networks. - Illustrate how data is sent and received over a network. - Recognize common network protocols. - Identify common network security measures and protocols. - Explain how to secure a network against intrusion tactics. - Compare and contrast local networks to cloud computing. - Explain the different types of system hardening techniques.

Modules

Get started with the course

    • 1 Videos
    • 2 Readings
Show info about module content

1 Videos

  • Introduction to Course 3

2 Readings

  • Course 3 overview
  • Helpful resources and tips

Introduction to networks

    • 7 Videos
    • 2 Readings
    • 1 Quiz
    • 2 Plugin
Show info about module content

7 Videos

  • Welcome to module 1
  • Chris: My path to cybersecurity
  • What are networks?
  • Tina: Working in network security
  • Emmanuel: Useful skills for network security
  • Network tools
  • Cloud networks

2 Readings

  • Network components, devices, and diagrams
  • Cloud computing and software-defined networks

1 Quiz

  • Test your knowledge: Introduction to networks

Network communication

    • 3 Videos
    • 2 Readings
    • 1 Quiz
Show info about module content

3 Videos

  • Introduction to network communication
  • The TCP/IP model
  • The four layers of the TCP/IP model

2 Readings

  • Learn more about the TCP/IP model
  • The OSI model

1 Quiz

  • Test your knowledge: Network communication

Local and wide network communication

    • 1 Videos
    • 1 Readings
    • 1 Quiz
Show info about module content

1 Videos

  • IP addresses and network communication

1 Readings

  • Components of network layer communication

1 Quiz

  • Test your knowledge: Local and wide network communication

Review: Network architecture

    • 1 Videos
    • 1 Readings
    • 1 Quiz
Show info about module content

1 Videos

  • Wrap-up

1 Readings

  • Glossary terms from module 1

1 Quiz

  • Module 1 challenge

Introduction to network protocols

    • 4 Videos
    • 3 Readings
    • 1 Quiz
Show info about module content

4 Videos

  • Welcome to module 2
  • Network protocols
  • Antara: Working in network security
  • Wireless protocols

3 Readings

  • Common network protocols
  • Additional network protocols
  • The evolution of wireless security protocols

1 Quiz

  • Test your knowledge: Recognize different network protocols

System identification

    • 4 Videos
    • 3 Readings
    • 1 Quiz
Show info about module content

4 Videos

  • Firewalls and network security measures
  • Virtual private networks (VPNs)
  • Security zones
  • Proxy servers

3 Readings

  • Subnetting and CIDR
  • Virtual networks and privacy
  • VPN protocols: Wireguard and IPSec

1 Quiz

  • Test your knowledge: System identification

Review: Network operations

    • 1 Videos
    • 1 Readings
    • 1 Quiz
Show info about module content

1 Videos

  • Wrap-up

1 Readings

  • Glossary terms from module 2

1 Quiz

  • Module 2 challenge

Introduction to network intrusion tactics

    • 3 Videos
    • 1 Readings
Show info about module content

3 Videos

  • Welcome to module 3
  • The case for securing networks
  • Matt: A professional on dealing with attacks

1 Readings

  • How intrusions compromise your system

Secure networks against Denial of Service (DoS) attacks

    • 1 Videos
    • 3 Readings
    • 2 Quiz
Show info about module content

1 Videos

  • Denial of Service (DoS) attacks

3 Readings

  • Read tcpdump logs
  • Real-life DDoS attack
  • Activity Exemplar: Analyze network layer communication

2 Quiz

  • Activity: Analyze network layer communication
  • Test your knowledge: Secure networks against Denial of Service (DoS) attacks

Network attack tactics and defense

    • 2 Videos
    • 2 Readings
    • 2 Quiz
    • 1 Plugin
Show info about module content

2 Videos

  • Malicious packet sniffing
  • IP Spoofing

2 Readings

  • Overview of interception tactics
  • Activity Exemplar: Analyze network attacks

2 Quiz

  • Activity: Analyze network attacks
  • Test your knowledge: Network interception attack tactics

Review: Secure against network intrusion

    • 1 Videos
    • 1 Readings
    • 1 Quiz
Show info about module content

1 Videos

  • Wrap-up

1 Readings

  • Glossary terms from module 3

1 Quiz

  • Module 3 challenge

Introduction to security hardening

    • 2 Videos
Show info about module content

2 Videos

  • Welcome to module 4
  • Security hardening

OS hardening

    • 1 Videos
    • 2 Readings
    • 2 Quiz
Show info about module content

1 Videos

  • OS hardening practices

2 Readings

  • Brute force attacks and OS hardening
  • Activity Exemplar: Apply OS hardening techniques

2 Quiz

  • Activity: Apply OS hardening techniques
  • Test your knowledge: OS hardening

Network hardening

    • 1 Videos
    • 2 Readings
    • 2 Quiz
Show info about module content

1 Videos

  • Network hardening practices

2 Readings

  • Network security applications
  • Activity Exemplar: Analysis of network hardening

2 Quiz

  • Activity: Analysis of network hardening
  • Test your knowledge: Network hardening

Cloud hardening

    • 2 Videos
    • 2 Readings
    • 1 Quiz
Show info about module content

2 Videos

  • Network security in the cloud
  • Kelsey: Cloud security explained

2 Readings

  • Secure the cloud
  • Cryptography and cloud security

1 Quiz

  • Test your knowledge: Cloud hardening

Review: Security hardening

    • 1 Videos
    • 2 Readings
    • 2 Quiz
Show info about module content

1 Videos

  • Wrap-up

2 Readings

  • Glossary terms from module 4
  • Portfolio Activity Exemplar: Use the NIST Cybersecurity Framework to respond to a security incident

2 Quiz

  • Module 4 challenge
  • Portfolio Activity: Use the NIST Cybersecurity Framework to respond to a security incident

Congratulations on completing Course 3!

    • 1 Videos
    • 3 Readings
Show info about module content

1 Videos

  • Course wrap-up

3 Readings

  • Reflect and connect with peers
  • Course 3 glossary
  • Get started on the next course

Auto Summary

"Connect and Protect: Networks and Network Security" is a foundational IT & Computer Science course, part of the Google Cybersecurity Certificate series. Taught by Google cybersecurity professionals, this 900-hour course delves into modern networking operations, TCP/IP, network hardware, and network security. Learners will gain skills in recognizing network vulnerabilities, securing networks with firewalls, system hardening, and VPNs. Ideal for beginners aiming for entry-level cybersecurity roles, the course offers hands-on activities and practical examples. Available on Coursera with Starter and Professional subscription options.

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