What happens when an attempt is made to read an element from an empty queue?

UP Police Computer Operator Grade A · 2017 · Computer Operator Grade A · 21 Dec 2018 Shift 2 · Computer Science

What happens when an attempt is made to read an element from an empty queue?

  1. A.

    Underflow

  2. B.

    Queuefull

  3. C.

    Onflow

  4. D.

    Overflow

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