MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

DATA STRUCTURES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the insertion and deletion happens from both the ends then the queue is called a ____ Queue
A
Deque
B
Header
C
Queue
D
Circular Queue
Explanation: 

Detailed explanation-1: -The insertion in a linear queue must happen from the rear end and deletion from the front end. But, in deque, you can perform both insertion and deletion operations at both of its ends. That’s why it is called a Double-Ended Queue (Deque).

Detailed explanation-2: -Double ended Queue: Double Ended Queue is also a Queue data structure in which the insertion and deletion operations are performed at both the ends (front and rear).

Detailed explanation-3: -The insertion of an element in a queue is called an enqueue operation and the deletion of an element is called a dequeue operation.

Detailed explanation-4: -A double-ended queue is a special type of data in the field of computer programming. In this abstract data type, elements can be added from both the front and the back of the queue. Due to this property, it is also known as a head-tail linked list.

Detailed explanation-5: -A dequeue in data structure is a linear data structure that does not follow the FIFO rule (First in first out), that is, in a dequeue data structure, the data can be inserted and deleted from both front and rear ends. However, in a queue, we may only insert and remove data from one end.

There is 1 question to complete.