How does UTF-8 encode Unicode code points?

It always uses exactly 2 bytes for every character.

It uses 1 byte for all characters, regardless of the code point.

It always uses exactly 4 bytes for every character.

It uses a variable number of bytes (1 to 4) depending on the code point's value.

A developer is debugging a Python script that reads a file encoded in ASCII. The script encounters a byte with value 200. What is the most likely cause of the issue?

The byte is a valid ASCII control character.

The file is actually encoded in UTF-8, and the byte is part of a multi-byte character.

The byte is a valid extended ASCII character.

The byte is a Unicode code point that must be decoded separately.

Python InstitutePCAP - Certified Associate Python Programmer

Domain 3Objective 1

PCAP-31-03 3.1 Understand Machine Representation of Characters PCAP-31 Practice Questions (Page 1)

Part of the Strings domain, which accounts for 18% of the PCAP-31 exam. Python Institute does not publish an official question count, but from its 65-minute exam (~25–45 total, ~5–8 in this domain), expect 2–3 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

4concepts

18%of the exam

Questions 1–5

1expert · hard
A developer is writing a Python script that generates a Windows path string. The path contains a backslash and a tab character as part of the filename. The developer needs to represent the literal text C:\temp\new\tfile.txt. Which Python string literal is correct?
Select an answer first
2foundation · easy
How does UTF-8 encode Unicode code points?
Select an answer first
3foundation · easy
What is the maximum numeric value of a code point that can be represented in the original ASCII standard?
Select an answer first
4application · easy
A developer is writing a Python script that needs to send a control character to a serial device. The device expects the ASCII character with decimal value 13 (carriage return). Which escape sequence should the developer use in the Python string?
Select an answer first
5expert · medium
A developer is debugging a Python script that reads a file encoded in ASCII. The script encounters a byte with value 200. What is the most likely cause of the issue?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to PCAP-31

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by Python Institute. “PCAP-31” is a trademark of its owner, used for identification only.

PCAP-31-03 3.1 Understand Machine Representation of Characters PCAP-31 Practice Questions (Page 1)

Questions 1–5

A developer is writing a Python script that generates a Windows path string. The path contains a backslash and a tab character as part of the filename. The developer needs to represent the literal text C:\temp\new\tfile.txt. Which Python string literal is correct?

How does UTF-8 encode Unicode code points?

What is the maximum numeric value of a code point that can be represented in the original ASCII standard?

A developer is writing a Python script that needs to send a control character to a serial device. The device expects the ASCII character with decimal value 13 (carriage return). Which escape sequence should the developer use in the Python string?

A developer is debugging a Python script that reads a file encoded in ASCII. The script encounters a byte with value 200. What is the most likely cause of the issue?

Keep studying — Strings