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    Question

    A _______ operation may give access to the top without modifying the stack.

    A Push Correct Answer Incorrect Answer
    B pop Correct Answer Incorrect Answer
    C Peek Correct Answer Incorrect Answer
    D Display Correct Answer Incorrect Answer
    E Reveal Correct Answer Incorrect Answer

    Solution

    In computer science, a stack is an abstract data type that serves as a collection of elements, with two principal operations: push, which adds an element to the collection, and pop, which removes the most recently added element that was not yet removed. The order in which elements come off a stack gives rise to its alternative name, LIFO (for last in, first out). Additionally, a peek operation may give access to the top without modifying the stack.

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