What is the name for a linear data structure that follows the First-In-First-Out (FIFO) principle?
Difficulty: Easy
About this MCQ
This Easy Data Structures question asks: What is the name for a linear data structure that follows the First-In-First-Out (FIFO) principle? The correct choice is B. Queue. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Data Structures items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Data Structures so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Data Structures item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. Doubly linked list
Why not A: “Doubly linked list” is not Queue.
- B. Queue ✓
- C. Circular linked list
Why not C: “Circular linked list” is not Queue.
- D. Stack
Why not D: “Stack” is not Queue.
Correct answer
B. Queue
Explanation
Queue is the value that answers “What is the name for a linear data structure that follows the First-In-First-Out (FIFO) principle” (option B). Option A (Doubly linked list) is a different value from Queue. Option C (Circular linked list) is a different value from Queue. Option D (Stack) is a different value from Queue. Keep Queue as the Data Structures fact for this stem.
Source: Data Structures Official Reference Guide
Tags: computer science, data structures, algorithms, programming
Submitted by: MCQsHub Editorial
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