Networking Model Word Scramble
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Layer | Name | Key concepts | PDU | devices | Main operations |
Layer 3* | Network | Logical addressing | Packet | Router | routes data between networks |
Layer 4* | Transport | packaging and shipping | Segment | gateways | provides flow control for end-to-end connections |
Layer 5 | Session | timing | data | -- | open/closes sessions |
Layer 6 | Presentation | file formates | data | -- | encryption, compression, translation |
Layer 7 | Application | giving orders | data | -- | demand transfers, IDs partners, final error resolution |
Layer 1 | Physical | physical technology (baseband or broadband) | Bit | hubs | putting bits on the wire |
Layer 2* | Data-link | Hardware addressing | Frame | switch | frames data for local network |
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