FC0-U71 Tech Concepts and Terminology Practice Question
Which of the following character encoding standards supports characters from most of the world's languages and uses a variable number of bytes per character?
⚠ Common exam trap
FC0-U71 often tests encoding standards by including Base64 — candidates confuse Base64 (binary-to-text) with character encoding, but Base64 does not represent language characters at all.
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/UTF-8
Unicode/UTF-8 is a variable-length encoding that can represent characters from virtually all of the world's writing systems, using 1 to 4 bytes per character. UTF-8 is backward-compatible with ASCII for the first 128 code points.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Base64
Why it's wrong here
Base64 encodes binary data as ASCII text for safe transport through text-only channels such as email MIME or data URIs; it is not a character encoding standard and cannot represent multilingual text. It is tempting when the requirement is transmitting arbitrary bytes intact, but it fails here because it neither maps characters to code points nor varies byte count per character.
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EBCDIC
Why it's wrong here
EBCDIC encodes only 256 characters in a single byte, so it cannot represent most of the world's scripts, and its byte count never varies. It is tempting because it is a genuine encoding standard, but it is the correct choice only for legacy IBM mainframe environments needing compatibility with existing EBCDIC data.
- ✓
Unicode/UTF-8
Why this is correct
UTF-8 encodes each Unicode code point using one to four bytes, covering virtually all writing systems while remaining ASCII-compatible. Fixed-width schemes such as UTF-32 cannot vary byte count, and legacy single-byte standards lack global language coverage.
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ASCII
Why it's wrong here
ASCII encodes only 128 code points across seven bits, so it cannot represent non-Latin scripts such as Cyrillic, Arabic or Japanese. It is tempting because ASCII is the historical foundation of English text files and remains valid for plain English configuration files, where its fixed single-byte simplicity is genuinely sufficient.
About these practice questions
Courseiva writes every FC0-U71 question from scratch — 988 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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.