About This Chapter
Network Security - Chapter Summary
In this chapter, you'll find lessons on network security that make topics like computer and network threat prevention and security easy to understand. These lessons are self-paced, so you can work as slowly or as quickly as you need. Along the way, check your progress by taking the short quiz provided with each lesson. After completing this chapter, you should be ready to:
- Explain how network security works
- Discuss the definition and fundamentals of network security
- Detail why network security is important
- Identify the role of a firewall in network security
- Point out the types of network security keys
- Outline non-repudiation in network security
- Describe wireless protected access (WPA) and WEP network security
- Explain the best practices to secure a wireless network
- Discuss the types and vulnerabilities of network security threats
- Identify types of attacks in network security and DoS attacks
1. Computer Security & Threat Prevention for Individuals & Organizations
Computer security and threat prevention is essential for individuals and organizations. Effective security measures can reduce errors, fraud, and losses. This lesson will explore unintentional threats and intentional threats. Various security measures and defenses will be explored, including encryption, firewalls, anti-virus, anti-spyware, passwords, back-ups, and biometric security.
2. Types of Network Security
Network security is a fundamental concept that is essential to any company using information technology. This lesson lists a few of the common types of network security systems and describes their role on the network.
3. How Does Network Security Work?
This lesson will define network security and explain a little about how it works. We will also discuss the kinds of threats that networks face and what's at risk if the security fails.
4. What is Network Security? - Definition & Fundamentals
This lesson offers a brief overview of network security fundamentals. We'll define the basic definition of network security and cover the scope of the field.
5. Why is Network Security Important?
In this lesson, we seek to explain how network security affects everyone in their daily lives and why it is important that everyone thinks about their behaviors when interacting with information technology.
6. What is a Firewall in Network Security? - Role & Use
The network firewall is an important piece of equipment that protects your network from hackers and other cyber criminals. Its use is essential if your business is connected to the Internet, and it's highly recommended for residential users too.
7. What is a Network Security Key? - Definition & Types
Leaving things unlocked - even your digital assets - can lead to problems. In this lesson, we'll define what a network security key is and examine some of the different types. We'll also discuss how they're used.
8. What is Non-Repudiation in Network Security?
Non-repudiation in network security is the ability to prevent a denial in an electronic message or transaction. In this lesson, you'll learn more about non-repudiation tools.
9. What is Wireless Protected Access (WPA)?
Wi-Fi security has come a long way. Wireless Protected Access, or WPA, is currently what keeps our devices from being compromised. In this lesson, we'll look at what WPA is, its security features, and the differences between WPA Personal and WPA Enterprise.
10. What is WEP Network Security?
Wireless networks are pervasive these days. It's hard to imagine going anywhere in North America that doesn't have one. In this lesson, we'll take a look at one of the related security technologies WEP, and how it relates to networks.
11. How to Secure a Wireless Network: Best Practices & Measures
Keeping your information safe starts with keeping a safe wireless network. In this lesson, we look at the best measures to keep WiFi networks secure, from simply encrypting data to restricting device access.
12. Network Security Threats: Types & Vulnerabilities
In this lesson, we will define networks, the social aspects of a network, and the three common network vulnerabilities that leave a network open to hostile attacks.
13. Types of Attacks in Network Security
Network security specialists must face a wide variety of threats to their data and devices. In this lesson, we'll look at a number of the different types of attacks that can occur.
14. What is a Denial of Service (DoS) Attack? - Definition, Types & Examples
In this lesson, we will describe a Denial of Service (DoS) and a Distributed Denial of Service (DDoS) attack and identify how these attacks occur. We will also discuss the objectives of an attack and some guidelines on how to prevent or limit the impacts of a DoS or DDoS attack.
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Other chapters within the Computer Science 108: Introduction to Networking course
- Computer Networking Fundamentals
- Networking Standards & the OSI Model
- Transmission & Networking Media
- The Transmission Control Protocol/Internet Protocol Model
- TCP/IP Mail Services & Network Troubleshooting
- Network Topologies & Ethernet Standards
- Network Hardware
- Wide Area Networks
- Wireless Networking
- Virtual Networks
- Voice & Video Communication Over IP