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Networking Fundamentals

You're reading from   Networking Fundamentals Develop the networking skills required to pass the Microsoft MTA Networking Fundamentals Exam 98-366

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Product type Paperback
Published in Dec 2019
Publisher Packt
ISBN-13 9781838643508
Length 510 pages
Edition 1st Edition
Languages
Concepts
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Author (1):
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Gordon Davies Gordon Davies
Author Profile Icon Gordon Davies
Gordon Davies
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Table of Contents (23) Chapters Close

Preface 1. Section 1: Network Infrastructure
2. Differentiating between Internets, Intranets, and Extranets FREE CHAPTER 3. Understanding Local Area Networks 4. Understanding Wide Area Networks 5. Understanding Wireless Networking 6. Network Topologies - Mapping It All Out 7. Section 2: Network Hardware
8. Switches and Switching - Forwarding Traffic on a Local Network 9. Routers and Routing - Beyond a Single Network 10. Media Types - Connecting Everything Together 11. Section 3: Protocols and Services
12. Understanding the OSI Model 13. Understanding TCP/IP 14. Understanding IPv4 15. Understanding IPv6 16. Understanding Name Resolution 17. Network Services 18. Section 4: Mock Exams
19. Mock Exam 1
20. Mock Exam 2
21. Assessments 22. Other Books You May Enjoy

Understanding subnet masks

A subnet is a smaller network within a larger network. Let me give you an analogy to reinforce this concept. Imagine you have a huge office complex (the larger network). Now, you could lease out the complex to just one company, or you could put up walls and create a number of smaller separate offices (subnets) that could be used by a number of other companies rather than just one. All of these companies will be identified by which suite number they occupy. The suite number is the equivalent of the network element of the IP address.

Even if our network is not broken down into smaller networks, we still tend to refer to that one network as a subnet.

Look at the following IP address. Which part of the address is the network element and which part is the host element?

 185.23.154.87

Based on the IP address itself, you cannot tell, unless you know that you...

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