Lecture Introduction to Networks - Chapter 1: Exploring the Network

In chapter 1 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,...
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Lecture Introduction to Networks - Chapter 1: Exploring the Network Chapter 1: Exploring the Network Introduction to NetworksPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 1 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 2Chapter 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 SummaryPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 3Networking TodayNetworks in Our Past and Daily LivesPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 4Networking TodayThe Global CommunityPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 5Interconnecting our LivesNetworking 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 PlayPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 6Providing Resources in a NetworkNetworks of Many SizesPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 7Providing Resources in a NetworkClients and ServersPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 8Providing Resources in a NetworkPeer-to-PeerPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 9LANs, WANs, and InternetsComponents of a NetworkThere are three categories of network components: Devices Media ServicesPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 10Components of a NetworkEnd DevicesSome 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 11Components of a NetworkNetwork Infrastructure DevicesExamples 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 12Components of a NetworkNetwork MediaPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 13Components of a NetworkNetwork RepresentationsPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 14Components of a NetworkTopology DiagramsPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 15LANs and WANsTypes of NetworksThe 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 16LANs and WANsLocal Area Networks (LAN)Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 17LANs and WANsWide Area Networks (WAN)Presentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 18LANs, WANs, and InternetsThe InternetPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 19The InternetIntranet and ExtranetPresentation_ID © 2008 Cisco Systems, Inc. All rights reserved. Cisco Confidential 20