Computer Science and Engineering › Queues › Question #5756
Single Choice Easy

QWhat happens when you try to dequeue an element from an empty queue?

ID: #5756 Queues 164 views
Question Info
#5756Q ID
EasyDifficulty
QueuesTopic
Start Quiz on This Topic
 Your Answer

Choose the Best Option

Click any option to instantly check if you're correct.

  • A The queue remains unchanged ✔ ✖
  • B An error occurs ✔ ✖
  • C The front element is returned with no change to the queue ✔ ✖
  • D The rear element is returned with no change to the queue ✔ ✖
Correct Answer

Explanation

Answer: b) An error occurs

Explanation: Dequeueing an element from an empty queue is considered an error since there is no element to remove.

 Continue Practice
Previous Question Next Question
 Share

Share This Question

Challenge a friend or share with your study group.

 More from This Topic

Related MCQ Questions

What is a queue in data structure?... What is the difference between a queue and a stack?... What are the two primary operations on a queue?... What is the time complexity of the enqueue and dequeue operations on a queue implemented using an array?... Which of the following is not a type of queue?... Which of the following is an advantage of using a queue?... Which of the following is a common problem that can be solved using a queue?... Which of the following is not a common application of a queue?... Which data structure is commonly used to implement a queue?...