Lesson 9 Networking Core Hardware Fundamentals Objectives Explain network communications concepts, including full- and half-duplex, network cabling,

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Presentation transcript:

Lesson 9 Networking Core Hardware Fundamentals

Objectives Explain network communications concepts, including full- and half-duplex, network cabling, access protocols and network protocols. List and describe commonly used network cable types. Identify the appropriate use of network cable types. Identify common network topologies. Install a network adapter. Describe methods for improving network bandwidth and availability.

LANs and WANs Local Area Network Wide Area Network

Network Security Models Workgroup Client/server Domain-based Directory-based

OSI Model

Network Communications Send data Message Response Full-Duplex Half-Duplex

Communication Requirements Communication path Common access protocol Common communication protocol

Media Types Wire (bounded) Media Thick coaxial cable Thin coaxial cable Shield twisted-pair (STP) Unshielded twisted-pair (UTP) Fiber optic Wireless (unbounded) Media Broadcast frequency Infrared line-of-site Terrestrial microwave Satellite communication

Cable Types Coax typeUseImpedance RG-8Thick ethernet50 Ohms RG-11Broadband LAN75 Ohms RG-58Thin ethernet50 Ohms RG-59Television75 Ohms RG-62ARCnet93 Ohms Twisted pair typeUseBandwidth Category 1Voice and data transfer1 Mbps Category 2Data4 Mbps Category 3Data10 Mbps Category 4Data20 Mbps Category 5Data100 Mbps

Common Topologies Bus Ring Star

Ethernet Standards 10Base2  10 Mbps coaxial thin ethernet 10Base5  10 Mbps coaxial thick ethernet 10BaseT  10 Mbps twisted pair 100BaseT  100 Mbps twisted pair 10BaseFL  100 Mbps fiber optic

IBM Cable Types Cable TypeGaugeDescription Type 122 STP suitable for 4-Mbps and 16-Mbps token ring Type 222 STP suitable for telephone and RS- 232 data. Not recommended for 4-Mbps or 16-Mbps token ring Type 324 UTP suitable for telephone and 4-Mbps token ring Type 626 STP suitable for patch panel and network adapter cable

Network Adapter Connection

PCMCIA Network Adapter

Communication Protocols Transmission Control Protocol/Internet Protocol (TCP/IP) NetBIOS Extended user Interface (NetBEUI) Internet Packet Exchange/Sequenced Packet Exchange (IPX/SPX) Data Link Control (DLC) AppleTalk

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