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Network +Network +

Tom McLaughlinb-admin, mcse, mous, a+, net+ (mct, linux)

tom@tomax7.com

http://www.tomax7.com

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Networking BenefitsNetworking BenefitsNetworking Enables: Information

Sharing

Hardware and Software Sharing

Centralized Administration

and Support

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Roles of Computers in a Roles of Computers in a NetworkNetwork Mail ServerMail Server

Database ServerDatabase Server

DatabaseDatabase

Fax ServerFax Server

File and Print ServerFile and Print Server Directory Services Directory Services ServerServer

Client Computer

File and Print Server

Database Server

Mail Server

Fax Server

Mail ServerMail Server

Database ServerDatabase Server

DatabaseDatabase

Fax ServerFax Server

File and Print ServerFile and Print Server

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Types of NetworksTypes of NetworksPeer-to-Peer

Client-Server

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Scope of NetworksScope of Networks

Local Area Network

Wide Area Network

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Bus TopologyBus Topology

Terminator

SegmentSegment

Terminator

http://homepages.uel.ac.uk/u0116771/bus_topology.htm

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Star TopologyStar Topology

Hub

http://www.computerhope.com/jargon/s/startopo.htm

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Ring TopologyRing Topology

http://www.computerhope.com/jargon/r/ringtopo.htm

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Mesh TopologyMesh Topology

http://www.computerhope.com/jargon/m/mesh.htm

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Hybrid TopologiesHybrid TopologiesStar-Bus Bus

Star-Ring

http://en.wikipedia.org/wiki/Network_topology#Hybrids

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Token RingToken Ring

CharacteristicsCharacteristicsCharacteristicsCharacteristics DescriptionDescriptionDescriptionDescription

Access MethodAccess Method Token passingToken passing

Transfer SpeedTransfer Speed 4 to 16 Mbps for all cable types4 to 16 Mbps for all cable types

Physical Ring

Logical Ring

MSAU

http://www.webopedia.com/TERM/T/token_ring_network.html

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Network CablesNetwork Cables

Types of CablesTypes of CablesTypes of CablesTypes of Cables

Coaxial ThinNetThickNet10Base2, 10Base5

Fiber-Optics

Twisted-PairUnshielded (UTP)Shielded (STP)10BaseT

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Wireless Communication Wireless Communication DevicesDevicesWireless Communication DevicesWireless Communication DevicesWireless Communication DevicesWireless Communication Devices

Narrowband Radio Transmission

Infrared Transmission

http://searchnetworking.techtarget.com/definition/infrared-transmission

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RoutersRouters

RouterRouter

RouterRouter

http://www.computerhope.com/jargon/r/router.htm

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GatewaysGateways

Ethernet

Token Ring

Gateway

http://en.wikipedia.org/wiki/Gateway

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Infrared Data Association (IrDA)

Wireless Communication by Using IrDA

Windows Client

Mouse

Laptop

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IP AddressesIP Addresses

192.168.1.0192.168.1.0 192.168.3.0192.168.3.0

192.168.1.100192.168.1.100 192.168.2.101192.168.2.101

192.168.2.100192.168.2.100 192.168.3.100192.168.3.100

192.168.2.0192.168.2.0

192.168.1.100192.168.1.100IPAddress

Host IDHost ID

Network IDNetwork ID

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The InternetThe Internet

Client

Connection UsingTCP/IP Protocol

Internet

Server

Text, Audio, Video, and Graphics Data

http://en.wikipedia.org/wiki/Internet

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Internet ServicesInternet Services

Internet

Electronic Mail (e-mail)World Wide Web (WWW)Chat Internet NewsFile Transfer Protocol (FTP)Telnet

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Uniform Resource Locator (URL)Uniform Resource Locator (URL)

URL (http://example.microsoft.com/tutorial/default.html)– Protocol used (http://)– DNS address (example.microsoft.com)– Path on the server (/tutorial/default.html)

http://example.microsoft.com/tutorial/default.htmlhttp://example.microsoft.com/tutorial/default.html

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FirewallsFirewalls

LAN

LAN

LAN

Internet

Firewall

AuthorizedUser

Unauthorized User

http://en.wikipedia.org/wiki/Firewall_%28computing%29