PCEP Practice Question: Data Types, Variables, Basic I/O and Operators
Which data type is most appropriate to store a user's age in a Python program?
⚠ Common exam trap
Python Institute often tests the distinction between numeric types by presenting a scenario where a float seems plausible (e.g., 'age could be 25.5 years'), but the PCEP expects you to recognize that age is conventionally an integer and that Python's int is the correct choice for whole-number 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
✓
int
A user's age is a whole number without a fractional component, so the integer type (int) is the most appropriate choice. Python's int can represent any integer value, including ages like 25 or 0, without the overhead or precision issues of floating-point 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.
- ✓
int
Why this is correct
Correct. Age is a whole number.
- ✗
float
Why it's wrong here
Inappropriate. Age is usually an integer, not a float.
- ✗
bool
Why it's wrong here
Inappropriate. Age is not a Boolean value.
- ✗
str
Why it's wrong here
Inappropriate. Age is numeric and may need arithmetic.
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About these practice questions
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Same concept, more angles
1 more way this is tested on PCEP
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO of the following are valid Python data types?
easy- ✓ A.int
- B.string
- C.char
- ✓ D.float
- E.double
Why A: `int` is a built-in numeric data type in Python used to represent whole numbers without a fractional component. Python's `int` type has arbitrary precision, meaning it can handle arbitrarily large integers limited only by available memory.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCEP practice question is part of Courseiva's free Python Institute 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 PCEP exam.