COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stack is FIFO and Queue is LIFO
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Stack is LIFO and Queue is FIFO
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Stack and Queue are both LIFO
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Stack and Queue are both FIFO
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Detailed explanation-1: -Stack is a container of objects that are inserted and removed according to the last-in first-out (LIFO) principle. Queue is a container of objects (a linear collection) that are inserted and removed according to the first-in first-out (FIFO) principle.
Detailed explanation-2: -The primary difference between Stack and Queue Data Structures is that Stack follows LIFO while Queue follows FIFO data structure type. LIFO refers to Last In First Out. It means that when we put data in a Stack, it processes the last entry first. Conversely, FIFO refers to First In First Out.
Detailed explanation-3: -Stack is the FIFO data structure” is the incorrect statement about stack data. Stack data structure is basically a computer structure which serves as a collection of elements. There are two principle operations in this system “push” and “pop”.
Detailed explanation-4: -For this reason stacks are sometimes referred to as Last In First Out (LIFO) lists. The restrictions on queue imply that the first element which is inserted into the queue will be the first one to be removed. Thus A is the first letter to be removed, and queues are known as First In First Out (FIFO) lists.
Detailed explanation-5: -* Which statement is correct with respect to stack? 1) It is a non-linear data structure. The correct answer is 2.