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8 Cards in this Set
- Front
- Back
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What are the 7 layers of OSI |
7 Application 6 Presentation 5 Session 4 Transport 3 Network 2 Data Link 1 Physical |
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OSI Presentation Layer 6 |
The Layer presents data for the application or network |
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OSI Layer 5 Session |
Two devices speak to each other a session is created that setups, coordinates and terminates between applications |
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OSI Layer 4 Transport |
How much data to send, at what rate, where it goes etc. example (TCP) Transmission Control Protocol |
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OSI Layer 3 Network |
Router functionality: packet forwarding, including routing through different routers. helps plan the route efficiently. |
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OSI Layer 2 Data Link |
node to node data transfer, error corrections from physical layer |
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OSI Layer 1 Physical |
Cables in routers, switches or computers. layouts of pins and voltages and other physical arrangements |
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Protocol Data Unit (PDU) |
refers to a group of information added or removed by a layer of the OSI model. Contains control info, address info or data |
