Collections · interview question
Which operation is invalid for a Queue interface?
Multiple choiceMediumchapter-4-curatedpremiumcollectionsqueue-and-deque-basics
Answer and explanation
Correct answer
B. Push()
Why
The push() operation is invalid for a Queue because it's a stack operation. Queue operations are typically related to FIFO processing, while push() is used to add an element to the top of a stack.
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