2 Chapter 1: NETWORKING BASICS LANS, WANS, AND MANSThree main networking technologies are used to connect computers and networks together:Local area network (LAN)Wide area network (WAN)Metropolitan area network (MAN)
3 Chapter 1: NETWORKING BASICS LANUsed to network computers located in a limited geographical area such as a room, floor, or buildingHas three main attributesTopology: bus, star, and ringMedium: copper, fiber, and wirelessProtocols
5 Chapter 1: NETWORKING BASICS WANSpans a large geographic areaDefined as an internetwork (private or public) that connects many LANsUses routers and usually point-to-point linksExamples of WANsThe InternetPrivate global enterprise networks
7 PROTOCOLS AND SERVICES Chapter 1: NETWORKING BASICSPROTOCOLS AND SERVICESFacilitate communication between two networked devicesPerform data encapsulationProvide a common language to communicating devicesProvide either connectionless or connection-oriented services
8 CONNECTIONLESS VS. CONNECTION-ORIENTED Chapter 1: NETWORKING BASICSCONNECTIONLESS VS. CONNECTION-ORIENTEDConnectionless protocolsDo not require a connectionHave very little overheadAre fast and unreliableConnection-oriented protocolsRequire a connectionRequire more overheadAre slower and very reliable
12 Chapter 1: NETWORKING BASICS SUMMARYLANs, WANs, and MANs allow groups of computers to share information.Signaling protocols are used to transmit data as 1s and 0s.Protocols provide a common language for communication hosts.