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Transcript of ccna1_v5_capitulo1
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© 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential Presentation_ID 1
Chapter 1: Exploring the Network
Introduction to Networks
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Presentation_ID 2 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
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.
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Presentation_ID 3 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
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
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Presentation_ID 4 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Networking Today
Networks in Our Past and Daily Lives
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Presentation_ID 5 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Networking Today
The Global Community
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Presentation_ID 6 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
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
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Presentation_ID 7 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Providing Resources in a Network
Networks of Many Sizes
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Presentation_ID 8 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Providing Resources in a Network
Clients and Servers
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Presentation_ID 9 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Providing Resources in a Network
Peer-to-Peer
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Presentation_ID 10 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
LANs, WANs, and Internets
Components of a Network
There are three categories of network components:
Devices
Media
Services
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Presentation_ID 11 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
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)
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Presentation_ID 12 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
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)
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Presentation_ID 13 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Components of a Network
Network Media
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Presentation_ID 14 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Components of a Network
Network Representations
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Presentation_ID 15 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
Components of a Network
Topology Diagrams
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Presentation_ID 16 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
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)
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Presentation_ID 17 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
LANs and WANs
Local Area Networks (LAN)
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Presentation_ID 18 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
LANs and WANs
Wide Area Networks (WAN)
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Presentation_ID 19 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
LANs, WANs, and Internets
The Internet
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Presentation_ID 20 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
The Internet
Intranet and Extranet
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Presentation_ID 21 © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential
LANs, WANs, and Internets
Internet Access Technologies