What is data link layer, Database Management System

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what is data link layer


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Construct a generalization-specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles that comprise an engine number and cost; cars that have a chass

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What are the two types of errors? The two types of errors are: a) Logical error b) System error

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What is System R? What are its two major subsystems? System R was intended and developed over a period of 1974-79 at IBM San Jose Research Center. It is a prototype and its pur

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