QuizFinLesson7

What does LIFO stand for?

• Last In First Out

• Last In Fixed Out

• Linear Input Fixed Output

• Linear Index First Output

What operation removes an element from the front of a queue?

• Push

• Pop

• Enqueue

• Dequeue

In a stack, which operation checks if the stack is full?

• isEmpty()

• isFull()

• size()

• top()

What principle is used by queues?

• FILO

• LIFO

• FIFO

• Random

Which of these is NOT a valid operation on a queue?

• Enqueue

• Dequeue

• Push

• Peek

Which data structure is most suitable for implementing an undo feature?

• Stack

• Queue

• Array

• Heap

What type of error occurs when you try to remove an element from an empty queue?

• Overflow

• Underflow

• NullPointerException

• OutOfMemory

In the array implementation of a queue, which variable tracks the first element?

• Top

• Front

• Rear

• Head

What is the time complexity of the pop() operation in a stack implemented with a linked list?

• O(1)

• O(n)

• O(log n)

• O(n^2)

Which operation adds an element to the rear of a queue?

• Push

• Enqueue

• Peek

• Dequeue