About This Chapter
Virtual Networks - Chapter Summary
This chapter provides a high-level overview of virtual networks through a series of short, engaging and expertly taught lessons. As you work through the chapter, you'll study a variety of virtual network concepts, including LANs, VPNs, SSH and cloud computing. When you're finished with a lesson, try the accompanying self-assessment quiz to check your understanding of key virtual network terms. You can access the chapter at any time of day or night, and it's accessible on any device that has an Internet connection. An easy-to-use Ask the Expert feature is also available if you have any questions. Studying this chapter can help you:
- Discuss the uses of virtual LANs
- Compare types of virtual private networks (VPNs)
- Evaluate SSH alternatives and remote access methods
- Assess the pros and cons of cloud computing
1. Virtual LANs: Definition & Uses
There are many types of networks in the world, one of which is a virtual LAN. This lesson will take you through what a VLAN is, the benefits it has, how switches can create VLANs, and an example of how it can be useful in the real world.
2. What Is a Virtual Private Network (VPN)? - Definition & Types
A virtual private network (VPN) provides a way to use network resources securely in a remote manner. In this lesson, we'll cover why we use VPNs, what types of VPNs are used, and what is necessary in order for VPNs to work.
3. SSH Alternatives
The remote access of computers remotely is a very convenient facility. SSH is one of the more popular protocols, but in this lesson, we'll look at alternatives to SSH for remote access to computers. You'll learn about Telnet, Mosh and VPN, and why you might prefer one over the other.
4. SSH Remote Access
We many not always have the ability to physically access a computer we need to work on. SSH, or Secure Shell, allows us to access that computer from a remote location, and to do so securely. In this lesson, we'll learn what SSH is and look at a few examples.
5. What is Cloud Computing? - Definition, Advantages & Disadvantages
In this lesson, we'll look at cloud computing, which is an area of computer technology focused on providing computer services over the Internet. Following the lesson, you can take a quiz.
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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
- Network Security
- Voice & Video Communication Over IP