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      Question

      What is a data hazard in instruction pipelining?

      A It occurs when two instructions in the pipeline have a conflict in their execution units. Correct Answer Incorrect Answer
      B It arises when an instruction depends on the result of a previous instruction in the pipeline. Correct Answer Incorrect Answer
      C It is a type of hazard that can never be resolved in a pipelined processor. Correct Answer Incorrect Answer
      D It happens when an instruction fetches data from the main memory. Correct Answer Incorrect Answer

      Solution

      It arises when an instruction depends on the result of a previous instruction in the pipeline.

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