Quick Answer
The answer is Alice is 30 years old. This output is produced by an f-string, or formatted string literal, which allows you to embed expressions directly inside curly braces within a string prefixed with `f`. When Python evaluates `f"{name} is {age} years old."`, it replaces `{name}` with the value of the variable `name` ('Alice') and `{age}` with the value of `age` (30), then concatenates everything—including the trailing period—into a single string. On the Certified Associate Python Programmer PCAP exam, this tests your understanding of Python f-string formatting, a modern and efficient way to handle string interpolation that often appears in coding questions. A common trap is forgetting that the f-string evaluates expressions at runtime, so any variable or expression inside the braces must be defined beforehand. To remember the syntax, think of the `f` as standing for “fill in the blanks”—the curly braces are the blanks, and Python fills them with the current variable values.
This PCAP practice question tests your understanding of strings. 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 = "Alice"
age = 30
print(f"{name} is {age} years old.")
```What is the output?
Refer to the exhibit.
```
name = "Alice"
age = 30
print(f"{name} is {age} years old.")
```{name} is {age} years old.
Why wrong: This would be the output without the f prefix.
Alice is 30 years old.
Correct substitution.
Alice is 30 years old
Why wrong: Missing the period at the end.
name is age years old.
Why wrong: Variable names are not printed as is.
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.
The code uses an f-string (formatted string literal) with `f"{name} is {age} years old."`. When `name = 'Alice'` and `age = 30`, the placeholders `{name}` and `{age}` are replaced by their values, producing the string `'Alice is 30 years old.'`. The trailing period is part of the string literal, so it appears in the output.
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.
{name} is {age} years old.
Why it's wrong here
This would be the output without the f prefix.
Alice is 30 years old.
Why this is correct
Correct substitution.
Related concept
Read the scenario before looking for a memorised answer.
Alice is 30 years old
Why it's wrong here
Missing the period at the end.
name is age years old.
Why it's wrong here
Variable names are not printed as is.
Common exam traps
Python Institute often tests whether candidates recognize that f-strings require the `f` prefix and that all placeholders are replaced with variable values, not left as literal text — the trap here is confusing an f-string with a regular string or forgetting that the period is part of the output.
Trap categories for this question
Command / output trap
This would be the output without the f prefix.
Detailed technical explanation
F-strings (PEP 498) evaluate expressions inside `{}` at runtime using the current scope's variables, and they are implemented as a syntactic shortcut for `str.format()`. Unlike `%`-formatting or `str.format()`, f-strings are evaluated at compile time into a series of string concatenations and `FORMAT_VALUE` opcodes, making them both faster and more readable. In real-world logging or user-facing messages, f-strings are preferred for their clarity and performance, but care must be taken to avoid injecting untrusted data without escaping.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Strings — This question tests Strings — Read the scenario before looking for a memorised answer..
The correct answer is: Alice is 30 years old. — The code uses an f-string (formatted string literal) with `f"{name} is {age} years old."`. When `name = 'Alice'` and `age = 30`, the placeholders `{name}` and `{age}` are replaced by their values, producing the string `'Alice is 30 years old.'`. The trailing period is part of the string literal, so it appears in the output.
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 PCAP 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 PCAP exam.
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