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Networking study guide
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Diploma in Information TechnologyModule: Networks 1A
Module Code: NTW110
STUDY GUIDE
,TABLE OF CONTENTS
A WORD OF WELCOME .................................................................................................................. 1
PURPOSE OF THE MODULE ........................................................................................................... 1
MODULE OUTCOMES ..................................................................................................................... 1
PRESCRIBED TEXTBOOK............................................................................................................... 1
STUDY UNIT 1: THE BUSINESS OF NETWORKING ................................................................... 2
STUDY UNIT 2: UNDERSTANDING NETWORKING .................................................................. 7
STUDY UNIT 3: UNDERSTANDING NETWORK CABLING ..................................................... 26
STUDY UNIT 4: UNDERSTANDING NETWORK HARDWARE ................................................ 41
STUDY UNIT 5: MAKING WAN CONNECTIONS ...................................................................... 50
STUDY UNIT 6: UNDERSTANDING NETWORKING PROTOCOLS ........................................ 60
STUDY UNIT 7: EXPLORING DIRECTORY SERVICES ............................................................ 76
STUDY UNIT 8: CONNECTION FROM AFAR: NETWORK REMOTE ACCESS ..................... 86
STUDY UNIT 9: SECURITY YOUR NETWORK .......................................................................... 91
STUDY UNIT 10: NETWORK DISASTER RECOVERY ............................................................ 103
STUDY UNIT 11: NETWORK SERVERS: ................................................................................... 114
STUDY UNIT 12: PURCHASING AND MANAGING CLIENT COMPUTERS ........................ 133
STUDY UNIT 13: DESIGNING A NETWORK ............................................................................ 140
,A WORD OF WELCOME
Welcome to Welcome to the Networks 1A Module. This subject will be presented on NQF
level 5 and will bear 10 credits in terms of the new HEQSF.
PURPOSE OF THE MODULE
The objective of this module is to introduce and develop the student’s understanding of
networks and its components. It is also aimed at developing students’ skills in understanding
the importance of networking and the various types that exist.
MODULE OUTCOMES
At the end of this module learners should be able to know:
• LAN and WAN communications are explained and applied.
• Network communication protocols are described and used correctly.
• Different types of network cable media are explored and a cabled network is designed.
• Devices for connecting networks are explained and a router-based network is designed.
• Current wireless networking technologies are explored and design options for wireless
networks are considered.
• Sharing resources on a network is explained and a peer-to-peer office network is
designed.
• A server is installed and set up, and a server-based office network is designed.
• WAN connection choices are explored and a network for WAN connectivity is designed.
• Factors that affect network design are investigated and a network for an office or
organization is designed.
• Several network security issues are explored and security into home and office networks
is designed.
• Hardware and software methods to monitor a network is explained and a solutions
strategy for network troubleshooting is designed.
PRESCRIBED TEXTBOOK
Textbook Author Year Publisher ISBN
Networking, A beginners Hallberg,
2013 McGraw-Hill 9780071812245
guide B.A.
Study Guide Page 1 of 152 Damelin ©
, STUDY UNIT 1: THE BUSINESS OF NETWORKING
LEARNING OUTCOMES
On completion of this study unit, the students should be able to:
• Understanding Networking: The Corporate Perspective
• What Does the Company Need?
• Understanding Networking: The Corporate Perspective
• What Does the Company Need?
• Understanding Networking: The Corporate Perspective
Introduction
This book is a soup-to-nuts beginner’s guide to networking. Before delving into the bits and
bytes of networking, which are covered in the rest of the book, you should start by
understanding the whys and wherefores of networking.
This study unit discusses networking from a business perspective. You’ll learn about the
benefits that networking brings a company and the different types of networking jobs
available. You’ll also discover how networks are supported from the business perspective,
and how you can begin a career in networking. Finally, you’ll learn about the Sarbanes-
Oxley Act of 2002 and how its requirements affect networking professionals.
Understanding Networking: The Corporate Perspective
To be truly effective in the field of networking, you need to start by understanding networking
from the corporate perspective. Why are networks important to companies? What do they
accomplish for the company? How can networking professionals more clearly meet the
needs of the company with the networks that they build and maintain? It’s important to
realize that there are no single correct answers to these questions. Every company will have
different needs and expectations with regard to their network. What is important is that you
learn the relevant questions to ask about networking for your company and arrive at the best
possible answers to those questions for your particular company. Doing so will ensure that
the company’s network best meets its needs.
What Does the Company Need?
There are many possible reasons that a company might need or benefit from a network. In
order to understand your particular company, you should start by exploring the following
questions. You may need to ask a variety of different people in the company their
Study Guide Page 2 of 152 Damelin ©
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