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The OSI model is the most common networking model used in the industry.

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The OSI model is the most common networking model used in the industry. Applications, network functions, and protocols are typically referenced using one or more of the seven OSI layers. Of the following, choose the two best statements that describe the OSI layer functions. Each correct answer represents a complete solution. Choose two.

A.

Layers 1 and 2 deal with application functionality and data formatting. These layers reside at the top of the model.

B.

Layers 4 through 7 define the functionality of IP Addressing, Physical Standards, and Data Link protocols.

C.

Layers 5, 6, and 7 focus on the Network Application, which includes data formatting and session control.

D.

Layers 1, 2, 3, and 4 deal with physical connectivity, encapsulation, IP Addressing, and Error Recovery. These layers define the end-to-end functions of data delivery.

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