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.
Refer to the exhibit.
name = input('Enter name: ')
age = input('Enter age: ')
print(name + ' is ' + age + ' years old.')A user enters 'Alice' for name and '30' for age. What is the output?
Refer to the exhibit.
name = input('Enter name: ')
age = input('Enter age: ')
print(name + ' is ' + age + ' years old.')Alice is 30 years old.
Correct concatenation.
Alice is 30 years old
Why wrong: Missing period.
Error: cannot concatenate str
Why wrong: No error.
Name: Alice, Age: 30
Why wrong: Not the output.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Alice is 30 years old.
Option A is correct because the code `print(name + ' is ' + age + ' years old.')` concatenates the string `'Alice '`, the string `' is '`, the string `'30'`, and the string `' years old.'` using the `+` operator. In Python, the `+` operator performs string concatenation when both operands are strings, and since `input()` always returns a string, both `name` and `age` are strings, so no type error occurs. The output is exactly `Alice is 30 years old.` including the period at the end.
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.
Alice is 30 years old.
Why this is correct
Correct concatenation.
Related concept
Read the scenario before looking for a memorised answer.
Alice is 30 years old
Why it's wrong here
Missing period.
Error: cannot concatenate str
Why it's wrong here
No error.
Name: Alice, Age: 30
Why it's wrong here
Not the output.
Common exam traps
The trap here is that candidates mistakenly think `input()` returns an integer for numeric input, leading them to expect a `TypeError` when concatenating a string with an integer, but in Python `input()` always returns a string, so no error occurs.
Trap categories for this question
Command / output trap
Not the output.
Detailed technical explanation
Under the hood, the `input()` function in Python always returns a string, even if the user types digits. This means `age = '30'` is a string, not an integer. The `+` operator for strings triggers the `__add__` method of the `str` class, which concatenates the sequences of Unicode code points. A common real-world pitfall is when a developer forgets to convert numeric input with `int()` or `float()` and later tries arithmetic operations, leading to a `TypeError`, but here concatenation works fine because all operands are strings.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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: Alice is 30 years old. — Option A is correct because the code `print(name + ' is ' + age + ' years old.')` concatenates the string `'Alice '`, the string `' is '`, the string `'30'`, and the string `' years old.'` using the `+` operator. In Python, the `+` operator performs string concatenation when both operands are strings, and since `input()` always returns a string, both `name` and `age` are strings, so no type error occurs. The output is exactly `Alice is 30 years old.` including the period at the end.
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 11, 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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