This PCEP practice question tests your understanding of data types, variables, basic i/o and operators. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A program needs to check if a number is both positive and even. Which expression correctly implements this?
if num > 0 or num % 2 == 0:
Why wrong: True if either condition holds, not both.
if num > 0 and num % 2 == 0:
Correct: both conditions must be true.
if num > 0 & num % 2 == 0:
Why wrong: Bitwise & has higher precedence than comparisons, leads to incorrect evaluation.
if num > 0 and % 2 == 0:
Why wrong: Syntax error: missing operand for %.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
if num > 0 and num % 2 == 0:
Option B is correct because it uses the logical `and` operator to combine two conditions: `num > 0` (checks if the number is positive) and `num % 2 == 0` (checks if the number is even). Both conditions must be true for the overall expression to be true, which correctly implements the requirement of checking if a number is both positive and even.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
if num > 0 or num % 2 == 0:
Why it's wrong here
True if either condition holds, not both.
if num > 0 and num % 2 == 0:
Why this is correct
Correct: both conditions must be true.
Related concept
Read the scenario before looking for a memorised answer.
if num > 0 & num % 2 == 0:
Why it's wrong here
Bitwise & has higher precedence than comparisons, leads to incorrect evaluation.
if num > 0 and % 2 == 0:
Why it's wrong here
Syntax error: missing operand for %.
Common exam traps
Python Institute often tests the distinction between logical operators (`and`, `or`) and bitwise operators (`&`, `|`), as well as the correct syntax for the modulo operator, to catch candidates who confuse these concepts.
Detailed technical explanation
In Python, logical operators (`and`, `or`, `not`) operate on boolean values and short-circuit, meaning evaluation stops as soon as the result is determined. The modulo operator `%` returns the remainder of division; for even numbers, `num % 2` equals 0. Using `&` (bitwise AND) instead of `and` can lead to subtle bugs because it has different operator precedence and does not short-circuit, which is a common pitfall for beginners.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the PCEP exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Data Types, Variables, Basic I/O and Operators — This question tests Data Types, Variables, Basic I/O and Operators — Read the scenario before looking for a memorised answer..
The correct answer is: if num > 0 and num % 2 == 0: — Option B is correct because it uses the logical `and` operator to combine two conditions: `num > 0` (checks if the number is positive) and `num % 2 == 0` (checks if the number is even). Both conditions must be true for the overall expression to be true, which correctly implements the requirement of checking if a number is both positive and even.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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.
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