FC0-U71 Tech Concepts and Terminology Practice Question
A technician needs to identify a network interface on a device. Which notational system is most commonly associated with MAC addresses?
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
✓
Hexadecimal
MAC addresses are typically written in hexadecimal (base 16) notation, using digits 0-9 and letters A-F.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Hexadecimal
Why this is correct
Hexadecimal is the standard representation for MAC addresses.
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Binary
Why it's wrong here
Binary is used internally but not for human-readable MAC addresses.
- ✗
Octal
Why it's wrong here
Octal is not used for MAC addresses.
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Decimal
Why it's wrong here
Decimal is not used for MAC addresses.
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
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JA
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.