FC0-U71 Tech Concepts and Terminology Practice Question
A network engineer is configuring a device and needs to enter a MAC address. Which notational system is typically used for 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 usually represented in hexadecimal (base-16) notation, e.g., 00:1A:2B:3C:4D:5E.
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
MAC addresses are represented in hexadecimal.
- ✗
Octal
Why it's wrong here
Octal is not used for MAC addresses.
- ✗
Decimal
Why it's wrong here
Decimal is not used for MAC addresses.
- ✗
Binary
Why it's wrong here
MAC addresses are not binary; they are hexadecimal.
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.