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FC0-U71 Practice Question: A developer is writing a program that processes…

A developer is writing a program that processes whole numbers only. Which data type should be used?

⚠ Common exam trap

Many exam-takers confuse 'whole numbers' with 'numbers that might have decimals' and choose Float, not realizing that integer types are the correct and efficient choice for non-fractional data.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Integer

(Integer) because the program processes whole numbers only, and the integer data type is specifically designed to store non-fractional numeric values without decimal points. In most programming languages, integers are stored as 32-bit or 64-bit binary values, making them efficient for arithmetic operations on whole numbers.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Float

    Why it's wrong here

    Floats store numbers with decimal points.

  • ✗

    String

    Why it's wrong here

    Strings are for text, not numeric calculations.

  • ✗

    Boolean

    Why it's wrong here

    Booleans represent true/false, not numbers.

  • ✓

    Integer

    Why this is correct

    Integers store whole numbers without decimals.

About these practice questions

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.