Queue Data Structure Quiz

What is the principle of a queue data structure?

• First In First Out (FIFO)

• Last In First Out (LIFO)

• Last In Last Out (LILO)

• Random Access

Which operation is used to add an element to a queue?

• dequeue()

• insert()

• enqueue()

• remove()

What does the peek() operation do in a queue?

• Removes the front element

• Checks if the queue is empty

• Adds an element to the queue

• Retrieves the front element without removing it

Which of the following is NOT a basic operation of a queue?

• peek()

• dequeue()

• sort()

• enqueue()

In a queue, which pointer is used to access the front element?

• rear

• top

• front

• base

What is the maximum size of the queue in the provided examples?

• 5

• 10

• 6

• 8

What happens when you try to enqueue an element into a full queue?

• The queue automatically resizes

• An overflow error occurs

• The element is added to the front

• The element is added successfully

Which data structure can be used to implement a queue?

• Array

• Stack

• Linked List

• Both Array and Linked List

What is the result of calling dequeue() on an empty queue?

• The last element is returned

• The queue remains unchanged

• An underflow error occurs

• The first element is returned

Which of the following is a real-world example of a queue?

• A stack of plates

• A pile of laundry

• A bookshelf

• A line of people waiting for tickets