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      Question

      Spark performs better than Hadoop MapReduce

      because:
      A It stores data only on disk Correct Answer Incorrect Answer
      B It uses in-memory computation Correct Answer Incorrect Answer
      C It has no fault tolerance Correct Answer Incorrect Answer
      D It requires less hardware Correct Answer Incorrect Answer
      E It is open-source Correct Answer Incorrect Answer

      Solution

      Spark reduces disk I/O by performing computations in memory, making it faster than MapReduce.

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