FC0-U71 Tech Concepts and Terminology Practice Question
An IT specialist is explaining ASCII and Unicode to a trainee. Which statement accurately describes a difference between ASCII and Unicode?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Unicode can represent characters from multiple languages, while ASCII is limited to English.
ASCII uses 7 bits and can represent 128 characters. Unicode is a variable-width encoding that supports characters from many languages.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ASCII uses 8 bits per character and supports 256 characters.
Why it's wrong here
ASCII is 7-bit; extended ASCII uses 8 bits but is not standard.
- ✗
Unicode uses 16 bits per character, while ASCII uses 7 bits.
Why it's wrong here
UTF-16 uses 16 bits for most characters, but UTF-8 varies; ASCII is fixed 7-bit.
- ✗
ASCII is a variable-width encoding, while Unicode uses a fixed width.
Why it's wrong here
ASCII is fixed 7-bit; Unicode (UTF-8) is variable-width.
- ✓
Unicode can represent characters from multiple languages, while ASCII is limited to English.
Why this is correct
Unicode supports global scripts; ASCII covers English and basic symbols.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA 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 FC0-U71 exam.