9 - 1. IEEE 802 2. session 3. bridge 4. token 5. network 6....

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1. IEEE 802 2. session 3. bridge 4. token 5. network 6. socket 7. application 8. star 9. hub, bridge, router, switch 10. connectionless 11. datagram 12. ethernet 13. OSI model (open systems interconnection) physical frame-datagram-segments-data 14. ring topology 15. collision 16. CSMA/CD 17. MAC 18. NIC (network interface card) 19. presentation 20. H.323 1. physical – actual communication of bits and bytes between network nodes, as implemented in data communication media and interface devices. Data link – transmission of packets to and from network interface hardware Network Layer - routing of packets from sender, through intermediate nodes and networks, to t heir final destination. Transport Layer - division of messages into packets for transmission and assembly of multiple packet messages. Session Layer - establishing a connection between sender and receiver including identification, authentication, and the establishment of protocol parameters. Presentation Layer - data encoding issues such as character set selection, compression, and encryption. Application Layer - any process that sends or receives messages via using the other layers (for example, a web browser or server). 2. Packets move simultaneously in both directions along the bus and are detected by each node as the packet moves past its connection. A terminating resistor absorbs the packet when it reaches either end of the bus. A packet on a ring network moves directly from the sender to the next node on the ring. That node examines the message to determine its destination. If its destination is any node other than itself, the packet is retransmitted to the next node on the ring. All transmissions are one way
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between a single sender and receiver. A packet on a star network moves across a point-to-point connection to the hub, which then relays it across another point-to-point connection to the destination node. 3.
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9 - 1. IEEE 802 2. session 3. bridge 4. token 5. network 6....

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