Computer · Data Structures & Algorithms · page 1 of 1

Stacks & Queues MCQs with Answers

Includes 1 past paper MCQs (marked).

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Stacks & Queues MCQs (1–5)

5 MCQs with answers and a short one-liner. Hide answers to test yourself.

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1.
What is the term used for the collection of jobs waiting to be processed in a computer system?
Correct Answer: B. Queue
One-liner
The collection of jobs waiting to be processed in a computer system is called a Queue.
2.
What is the function called that is used to insert data into a stack data structure?
Correct Answer: A. Push
One-liner
The function used to insert data into a stack is called Push.
3.
Which data structure is typically used for evaluating expressions in postfix notation?
Correct Answer: D. Stack
One-liner
A Stack is used for evaluating postfix expressions because it follows LIFO order, allowing operands to be pushed and operators to pop the required operands efficiently.
4.
Last In First Out (LIFO) is used for?
Correct Answer: C. Stack operations
One-liner
LIFO (Last In First Out) is the fundamental principle used for Stack operations.
5.
Past Paper MCQ
Stack works on:
Correct Answer: D. LIFO
One-liner
A stack works on the LIFO (Last In, First Out) principle, meaning the last element inserted is the first one to be removed.