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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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