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Network Security Principles

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Network Security Principles

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Gain insight into a topic and learn the fundamentals.
Beginner level
No prior experience required
3 hours to complete
Flexible schedule
Learn at your own pace
Gain insight into a topic and learn the fundamentals.
Beginner level
No prior experience required
3 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

Details to know

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Assessments

6 assignments

Taught in English

Build your subject-matter expertise

This course is part of the Network Fundamentals Specialization
When you enroll in this course, you'll also be enrolled in this Specialization.
  • Learn new concepts from industry experts
  • Gain a foundational understanding of a subject or tool
  • Develop job-relevant skills with hands-on projects
  • Earn a shareable career certificate

There are 6 modules in this course

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.

Beyond foundational knowledge, you’ll gain experience understanding advanced techniques like Authentication, Authorization, and Accounting (AAA) and Role-Based Access Control (RBAC). Through guided content, you’ll build confidence in implementing strong security measures and responding to potential incidents. Whether you’re starting your cybersecurity journey or looking to deepen your expertise, this course provides a comprehensive and up-to-date foundation to help you safeguard networks in the digital age.

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

2 videos•Total 21 minutes
  • Creating Access Control Lists•8 minutes
  • Types of Access Control Lists•13 minutes
3 readings•Total 16 minutes
  • Network Fundamentals - Specialization Introduction•3 minutes
  • Course Description•5 minutes
  • Access Control Lists•8 minutes
1 assignment•Total 4 minutes
  • Untitled•4 minutes

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

2 videos•Total 15 minutes
  • Network Access Controls•7 minutes
  • Extending Network Access Controls to Network Devices•7 minutes
2 readings•Total 11 minutes
  • Group-Based Policy (GBP)•3 minutes
  • Network Access Control and 802.1X•8 minutes
1 assignment•Total 3 minutes
  • Knowledge Check - Synergy of GBP, NAC, and 802.1X•3 minutes

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

1 video•Total 9 minutes
  • Fortifying Networks: Firewalls•9 minutes
1 reading•Total 10 minutes
  • Firewall and Intrusion Prevention System •10 minutes
1 assignment•Total 3 minutes
  • Knowledge Check - Fortifying Networks: Firewalls•3 minutes

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

2 videos•Total 11 minutes
  • VPN Technology•3 minutes
  • Virtual Private Networks•7 minutes
1 reading•Total 10 minutes
  • Virtual Private Networks•10 minutes
1 assignment•Total 3 minutes
  • Knowledge Check - Securing Connections via VPN•3 minutes

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

1 video•Total 5 minutes
  • AAA and RBAC Lists•5 minutes
1 reading•Total 9 minutes
  • AAA and RBAC•9 minutes
1 assignment•Total 3 minutes
  • Knowledge Check - Secure Access Control: AAA and RBAC•3 minutes

What's included

1 reading1 assignment

1 reading•Total 3 minutes
  • Summary•3 minutes
1 assignment•Total 25 minutes
  • Network Security Principles•25 minutes

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Instructor

Cisco Learning and Certifications
18 Courses•5,104 learners

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Frequently asked questions

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