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The X.25 standard specifies protocols at which layers of the OSI Model? a. Physical b. Physical and Data Link c. Physical, Data Link, and Network d. Data Link and Network
b. Physical and Data Link. The X.25 standard specifies protocols at Physical and Data Link layers of OSI Model.
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Expert answered|andrewpallarca|Points 9430|
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Asked 3/10/2012 1:56:03 PM
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