Book Image

Networking Fundamentals

By : Gordon Davies
Book Image

Networking Fundamentals

By: Gordon Davies

Overview of this book

A network is a collection of computers, servers, mobile devices, or other computing devices connected for sharing data. This book will help you become well versed in basic networking concepts and prepare to pass Microsoft's MTA Networking Fundamentals Exam 98-366. Following Microsoft's official syllabus, the book starts by covering network infrastructures to help you differentiate intranets, internets, and extranets, and learn about network topologies. You’ll then get up to date with common network hardware devices such as routers and switches and the media types used to connect them together. As you advance, the book will take you through different protocols and services and the requirements to follow a standardized approach to networking. You’ll get to grips with the OSI and TCP/IP models as well as IPv4 and IPv6. The book also shows you how to recall IP addresses through name resolution. Finally, you’ll be able to practice everything you’ve learned and take the exam confidently with the help of mock tests. By the end of this networking book, you’ll have developed a strong foundation in the essential networking concepts needed to pass Exam 98-366.
Table of Contents (23 chapters)
Free Chapter
Section 1: Network Infrastructure
Section 2: Network Hardware
Section 3: Protocols and Services
Section 4: Mock Exams
Mock Exam 1
Mock Exam 2

Overview of IPv4

We have already discussed IP in a number of chapters already while touching upon some of the basics. IP addresses provide a hierarchical means of identifying devices on networks. Hierarchical in this context means that we can identify which network an IP address resides on through the use of the IP address and it's subnet mask. Don't worry if the latter term is unfamiliar to you – we will cover it in this chapter.

In this chapter, we will cover arguably one of the primary functions of this ubiquitous protocol: addressing. There are currently two main versions of IP address that are used in everyday networking:

  • IPv4
  • IPv6

In this chapter, we will focus on IPv4, and in the next chapter, we will cover IPv6.

Structure of an IPv4 address