MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Queue is an abstract data structure, somewhat similar to Stacks. Unlike stacks, a queue is open at both its ends. One end is always used to insert data (enqueue) and the other is used to remove data (dequeue). Queue follows First-In-First-Out methodology, i.e., the data item stored first will be accessed first.

Detailed explanation-2: -Queues are common in computer programs, where they are implemented as data structures coupled with access routines, as an abstract data structure or in object-oriented languages as classes. Common implementations are circular buffers and linked lists.

Detailed explanation-3: -In computer science, an abstract data type (ADT) is a mathematical model for data types. An abstract data type is defined by its behavior (semantics) from the point of view of a user, of the data, specifically in terms of possible values, possible operations on data of this type, and the behavior of these operations.

Detailed explanation-4: -A queue is an important data structure in programming. A queue follows the FIFO (First In First Out) method and is open at both of its ends. Data insertion is done at one end rear end or the tail of the queue while deletion is done at the other end called the front end or the head of the queue.

Detailed explanation-5: -Stack & Queue is an example of ADT • An array is not ADT.