In today’s interconnected world, securing networks is more critical than ever. This course empowers learners to gain essential tools and strategies needed to defend computer networks and data from cyber threats. You’ll dive into key topics such as firewalls, VPNs, access controls, and security monitoring, learning how each one contributes to a safe and resilient IT environment.
Network Security Principles
Network Security Principles
This course is part of Network Fundamentals Specialization
Instructor: Mai Vang
Included with
Gain insight into a topic and learn the fundamentals.
Beginner level
No prior experience required
2 hours to complete
Flexible schedule
Learn at your own pace
What you'll learn
Learn how access control lists (ACLs) are configured to control network traffic flow
Know how GBP, NAC, and 802.1x set and enforce network security policies
Understand firewalls, VPNs, AAA, and RBAC in securing and managing network access
Skills you'll gain
Details to know
Shareable certificate
Add to your LinkedIn profile
Recently updated!
December 2025
Assessments
6 assignments
Taught in English
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This course is part of the Network Fundamentals Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
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There are 6 modules in this course
One of the common approaches to implementing rule-based security is by configuring access control lists (ACLs). ACLs can be configured on a wide range of networking devices like routers, switches, firewalls, and wireless access points. In this topic, you will learn about the use of access control lists to enhance the security of your network.
What's included
2 videos3 readings1 assignment
Network security and access control mechanisms are essential to protect the sensitive data and resources of organizations. Three important components that play a vital role in achieving this objective are Group-Based Policy (GBP), Network Access Control (NAC), and 802.1X. In this module, you will learn about this powerful trio, which forms a comprehensive approach to modern network security.
What's included
2 videos2 readings1 assignment
In this module, you will learn about two essential components of network security that work together to safeguard networks from cyber threats: firewall and the intrusion prevention system (IPS).
What's included
1 video1 reading1 assignment
In this module, you will learn about virtual private network (VPN) technology and how it creates a secure tunnel to offer privacy and safety to users.
What's included
2 videos1 reading1 assignment
To ensure the strong security, confidentiality, and safety of the resources, systems, and data, it is important to provide the right set of access controls to users. By implementing effective access control, businesses can reduce the risk of data breaches, unauthorised modifications, and other security incidents. In this module, you will learn about two popular access control mechanisms: authentication, authorization, and accounting (AAA) and Role-Based Access Control (RBAC).
What's included
1 video1 reading1 assignment
What's included
1 reading1 assignment
Earn a career certificate
Add this credential to your LinkedIn profile, resume, or CV. Share it on social media and in your performance review.
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Frequently asked questions
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