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      Question

      In a depth-first traversal of a tree or graph, what data

      structure is typically used to keep track of nodes to be visited next?
      A Queue Correct Answer Incorrect Answer
      B Stack Correct Answer Incorrect Answer
      C Priority Queue Correct Answer Incorrect Answer
      D Linked List Correct Answer Incorrect Answer
      E None of the mentioned Correct Answer Incorrect Answer

      Solution

      The correct answer is B

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