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 wireless security

Wireless communication could be described as a broadcast technology. Anything that is transmitted is available for all to hear or eavesdrop on. Can you spot what issues this may bring? If you said this leaves the data unsecure, you would be correct. Therefore any wireless deployment needs to ensure that appropriate measures are taken to protect the data.

There are three principles of data security that we need to bear in mind. These are classed as the CIA triad (sometimes the IAC triad) and form the basis of any security plan. CIA is an acronym for Confidentiality, Integrity, Availability:

  • Confidentiality: This refers to protecting data in such a way that only the people who are authorized to see it can do so.
  • Integrity: This is the trustworthiness of the data. Has the data been changed in any way? This may be through accidental corruption or...