| 21. | The standard covers the Physical layer and the Media Access Control part of the Data link layer like 802.11.
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| 22. | AX . 25 v2.0 and later occupies the data link layer, the second layer of the OSI model.
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| 23. | Any data link layer details define how application data is encapsulated ( for example for synchronization or error-correction ).
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| 24. | Service access points are also used in IEEE 802.2 Logical Link Control in Ethernet and similar Data Link Layer protocols.
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| 25. | It relies on a new, optional sublayer in the data link layer of the Open Systems Interconnection ( OSI ) model.
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| 26. | NCP provided services comparable to the Data Link Layer and Network Layer functions in the OSI model of a Wide area network.
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| 27. | However, this does not preclude Data Link Layers with an MTU smaller than IP's minimum MTU from conveying IP data.
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| 28. | Once a bridge learns the addresses of its connected nodes, it forwards data link layer frames using a layer 2 forwarding method.
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| 29. | The "'cabling system "'is a network in which a data link layer protocol can be used for communication.
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| 30. | However, it is accurate to say that the 1822 protocol incorporates the physical layer, the data link layer, and the network layer.
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