Stack is also known as

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Question

This question was previously asked in

BPSC AE Paper 6 (Electrical) 25 Mar 2022 Official Paper

Answer 1

The correct answer is 'Last In First Out(LIFO)'

Key Points

Stacks in computing architectures are regions of memory where data is added or removed in a last-in-first-out (LIFO) manner.
In most modern computer systems, each thread has a reserved region of memory referred to as its stack.
When a function executes, it may add some of its local state data to the top of the stack; when the function exits it is responsible for removing that data from the stack.
The stack is often used to store variables of fixed length local to the currently active functions.
Programmers may further choose to explicitly use the stack to store local data of variable length.
If a region of memory lies on the thread's stack, that memory is said to have been allocated on the stack, i.e. stack-based memory allocation (SBMA).
This is contrasted with a heap-based memory allocation (HBMA). The SBMA is often closely coupled with a function call stack.

Additional Information

Following are some of the important applications of a Stack data structure:

Stacks can be used for expression evaluation.
Stacks can be used to check parenthesis matching in an expression.
Stacks can be used for Conversion from one form of expression to another.
Stacks can be used for Memory Management.Stack data structures are used in backtracking problems.