Chapter 1:
Exploring the Network

Introduction to Networks

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserve...
Chapter 1: Objectives
Students will be able to:
 Explain how multiple networks are used in everyday
life.
 Explain the t...
Chapter 1
1.1 Globally Connected
1.2 LANs, WANs, and the Internet
1.3 The Network as a Platform
1.4 The Changing Network E...
Networking Today

Networks in Our Past and Daily Lives

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved.

...
Networking Today

The Global Community

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confidenti...
Interconnecting our Lives

Networking impacts in our daily lives
 Networks Support the Way We Learn

 Networks Support t...
Providing Resources in a Network

Networks of Many Sizes

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved....
Providing Resources in a Network

Clients and Servers

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© 2008 Cisco Systems, Inc. All rights reserved.

C...
Providing Resources in a Network

Peer-to-Peer

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Co...
LANs, WANs, and Internets

Components of a Network
There are three categories of network components:
 Devices
 Media
 S...
Components of a Network

End Devices
Some examples of end devices are:
 Computers (work stations, laptops, file servers, ...
Components of a Network

Network Infrastructure Devices
Examples of intermediary network devices are:
 Network Access Dev...
Components of a Network

Network Media

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© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confidenti...
Components of a Network

Network Representations

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© 2008 Cisco Systems, Inc. All rights reserved.

Cisco ...
Components of a Network

Topology Diagrams

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© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confid...
LANs and WANs

Types of Networks
The two most common types of network infrastructures are:
 Local Area Network (LAN)
 Wi...
LANs and WANs

Local Area Networks (LAN)

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confiden...
LANs and WANs

Wide Area Networks (WAN)

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confident...
LANs, WANs, and Internets

The Internet

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© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confident...
The Internet

Intranet and Extranet

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© 2008 Cisco Systems, Inc. All rights reserved.

Cisco Confidential
...
LANs, WANs, and Internets

Internet Access Technologies

Presentation_ID

© 2008 Cisco Systems, Inc. All rights reserved.
...
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  1. 1. Chapter 1: Exploring the Network Introduction to Networks Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 1
  2. 2. Chapter 1: Objectives Students will be able to:  Explain how multiple networks are used in everyday life.  Explain the topologies and devices used in a small to medium-sized business network.  Explain the basic characteristics of a network that supports communication in a small to medium-sized business.  Explain trends in networking that will affect the use of networks in small to medium-sized businesses. Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 2
  3. 3. Chapter 1 1.1 Globally Connected 1.2 LANs, WANs, and the Internet 1.3 The Network as a Platform 1.4 The Changing Network Environment 1.5 Summary Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 3
  4. 4. Networking Today Networks in Our Past and Daily Lives Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 4
  5. 5. Networking Today The Global Community Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 5
  6. 6. Interconnecting our Lives Networking impacts in our daily lives  Networks Support the Way We Learn  Networks Support the Way We Communicate  Networks Support the Way We Work  Networks Support the Way We Play Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 6
  7. 7. Providing Resources in a Network Networks of Many Sizes Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 7
  8. 8. Providing Resources in a Network Clients and Servers Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 8
  9. 9. Providing Resources in a Network Peer-to-Peer Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 9
  10. 10. LANs, WANs, and Internets Components of a Network There are three categories of network components:  Devices  Media  Services Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 10
  11. 11. Components of a Network End Devices Some examples of end devices are:  Computers (work stations, laptops, file servers, web servers)  Network printers  VoIP phones  TelePresence endpoint  Security cameras  Mobile handheld devices (such as smartphones, tablets, PDAs, and wireless debit / credit card readers and barcode scanners) Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 11
  12. 12. Components of a Network Network Infrastructure Devices Examples of intermediary network devices are:  Network Access Devices (switches, and wireless access points)  Internetworking Devices (routers)  Security Devices (firewalls) Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 12
  13. 13. Components of a Network Network Media Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 13
  14. 14. Components of a Network Network Representations Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 14
  15. 15. Components of a Network Topology Diagrams Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 15
  16. 16. LANs and WANs Types of Networks The two most common types of network infrastructures are:  Local Area Network (LAN)  Wide Area Network (WAN). Other types of networks include:  Metropolitan Area Network (MAN)  Wireless LAN (WLAN)  Storage Area Network (SAN) Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 16
  17. 17. LANs and WANs Local Area Networks (LAN) Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 17
  18. 18. LANs and WANs Wide Area Networks (WAN) Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 18
  19. 19. LANs, WANs, and Internets The Internet Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 19
  20. 20. The Internet Intranet and Extranet Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 20
  21. 21. LANs, WANs, and Internets Internet Access Technologies Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 21

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