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

Understanding twisted pair cables and their types

Perhaps the most common type of network cable in use currently, twisted pair cables are, in my experience, possibly the cables that are mislabeled the most. When showing people a twisted pair cable, I've often heard it being called a Cat 5 cable or an RJ-45 cable. As you will see in this section, the Cat 5 cable is a variant of twisted pair cabling, while RJ-45 refers to the type of connector that's used with a twisted pair cable.

I would like to start off by talking about the characteristics that all twisted pair cables have in common. Firstly, each cable is made of eight inner copper wires that carry a voltage. These eight wires are broken down into four pairs, and the wires in each pair are twisted around their siblings. Each wire in a pair carries an electrical signal that is opposite to other. By twisting the wires...