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.
x = input("Enter x: ")
y = input("Enter y: ")
print(x + y)Refer to the exhibit. If the user enters 5 and 3, what is the output?
x = input("Enter x: ")
y = input("Enter y: ")
print(x + y)8
Why wrong: Would happen if x and y were numeric.
5 3
Why wrong: No space is added.
TypeError
Why wrong: No error, strings can be concatenated.
53
String concatenation of '5' and '3'.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
53
In Python, the `input()` function always returns a string. When the user enters 5 and 3, the `+` operator concatenates the two strings '5' and '3', producing the string '53'. Option D is correct because no numeric conversion is performed.
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.
8
Why it's wrong here
Would happen if x and y were numeric.
5 3
Why it's wrong here
No space is added.
TypeError
Why it's wrong here
No error, strings can be concatenated.
53
Why this is correct
String concatenation of '5' and '3'.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Python Institute often tests the misconception that `input()` returns a numeric type when digits are entered, leading candidates to expect arithmetic addition instead of string concatenation.
Detailed technical explanation
The `input()` function in Python reads input as a string, regardless of whether the user types digits. The `+` operator behaves polymorphically: for numbers it performs addition, but for strings it performs concatenation. This is a common source of bugs when handling user input without explicit type conversion, especially in interactive scripts or CLI tools.
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: 53 — In Python, the `input()` function always returns a string. When the user enters 5 and 3, the `+` operator concatenates the two strings '5' and '3', producing the string '53'. Option D is correct because no numeric conversion is performed.
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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