Question

Stack is also called as

• A. First in first out
• B. Fist in last out
• C. Last in last out
• D. Last in first out

Hint:

Stack = LIFO (Last-In, First-Out). Think of a stack of cafeteria trays. Queue = FIFO (First-In, First-Out). Think of a checkout line at a store.

Answer 1

The Correct Option is D

Step 1: Define the behavior of a stack. A stack is a linear data structure that operates like a stack of plates. You can only add a new plate to the top, and you can only remove the top plate.
Step 2: Determine the principle. The last element added (pushed) onto the stack is the first element to be removed (popped). This principle is known as Last-In, First-Out (LIFO). Option (A) First-In, First-Out (FIFO) describes a queue.