1. Modelo OSI Camadas Disciplina: Instalação e Configuração de Computadores Trabalho elaborado por: Mário Lucas 8ºH

2. Physical – defines the characteristics of the physical medium used to send and receive data bits. Protocol and service- EIA/TIA 232 and 449, RJ45, Ethernet, CAT 5, X.21, HSSI O modelo OSI camada 1

3. Data link – TranslatesPDUsfromhigherlayersinto data frames. Defines the LLC and MAC sublayers. Protocolandservice – FrameRelay, PPP, HDLC, IEEE 802.2, 802.3, 802.5, FDDI, ATM, SDLC, LAPB, ISDN. O modelo OSI camada 2

4. Netwark– concernedwithend-to-enddeliveryof data, logicaladdressing, androutingandhowroutes are identified. Protocolandservice – IP, IPX, and Apple Talk DDP O modelo OSI camada 3

5. Transport– segmentsandreassembles data. Defines reliableandunreliable data transmission, andconnection-orientedandconnectionlessprotocols. ProtocolandService – TCP, UDP, SPX O modelo OSI camada 4

6. Session – Establishes, controls, and ends sessions. Full-and half-duplex communications. Protocols and Services – NFS, SQLM NetBIOS, Apple Talk, ASP, X Windows, RPC, DECNet SCP O modelo OSI camada 5

7. Pressentation – Defines data formats, encluding encryption, data conversion, audio/ visual, and graphics. Protocol and Service – MPEG. HTML. MIDI, ASCII, EBCDIC, TIFF, GIF, PICT. O modelo OSI camada 6

8. Application– Identifiesandestablishesavailabilityofcommunicationpartners. Determines whetherresources are sufficient for thecommunication to occur. ProtocolandService – FTP, SMTP, Telnet, Web Browsers, CMIP, and Virtual Terminal Protocol O modelo OSI camada 7

9. Thanks for yourattention