7-Layer OSI Model
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Layer 7 | Application
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| Layer 7 | provides network services to application processes (such as e-mail, file transfer & terminal emulation)
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| Layer 7 | the interface that allows the application (program) to communicate
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| Layer 6 | Presentation
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| Layer 6 | Like an interpreter
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| Layer 6 | Data representation
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| Layer 6 | ensure that data is readable by the receiving system
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| Layer 6 | format of data
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| Layer 6 | data structures
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| Layer 6 | negotiates data transfer syntax for application layer
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| Layer 5 | Session
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| Layer 5 | interhost communication
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| Layer 5 | establishes, manages, and terminates sessions between application
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| Layer 4 | Transport
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| Layer 4 | end-to-end connection reliability
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| Layer 4 | ensures integrity of data
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| Layer 4 | concerned with data transport issues between hosts
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| Layer 4 | data transport reliability
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| Layer 4 | establish, maintain, terminate virtual circuits
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| Layer 4 | fault detection and recovery
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| Layer 4 | information flow control
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| Layer 4 | TCP: Transmission Control Protocol
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| Layer 3 | Network
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| Layer 3 | Addresses & best path
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| Layer 3 | provides connectivity and path selection between two end systems
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| Layer 3 | domain of routing
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| Layer 3 | IP: Internet Protocol
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| Layer 3 | Logical Addresses
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| Layer 2 | Data Link
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| Layer 2 | Access to media
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| Layer 2 | provides reliable transfer of data across media
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| Layer 2 | physical address, network topology, error notification, flow control
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| Layer 2 | physical address: MAC address (Media Access Control)
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| Layers 2 & 3 | only layers concerned with addressing
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| Layer 2 | Protocol: Ethernet
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| Layer 2 | Protocol: Frame Relay
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| Layer 1 | Physical
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| Layer 1 | binary transmission
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| Layer 1 | wires, connectors, voltages, data rates
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Created by:
lynzl84
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