FC0-U71 Tech Concepts and Terminology Practice Question
A memory address is displayed as 0x1A3F. What is the correct base of this representation?
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
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Hexadecimal
The prefix 0x indicates hexadecimal (base 16).
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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Hexadecimal
Why this is correct
Correct: 0x denotes hexadecimal.
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Decimal
Why it's wrong here
Decimal uses base 10, no prefix.
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Octal
Why it's wrong here
Octal uses base 8, often with a leading 0.
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Binary
Why it's wrong here
Binary uses base 2, not 0x prefix.
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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.