ISC2 CC Network Security Practice Question
Which protocol is used to resolve IP addresses to MAC addresses on a local network?
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
✓
ARP
ARP (Address Resolution Protocol) maps IP addresses to MAC addresses, operating at Layer 2/3 boundary.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
ARP
Why this is correct
ARP resolves IP addresses to MAC addresses.
- ✗
DHCP
Why it's wrong here
DHCP assigns IP addresses dynamically.
- ✗
DNS
Why it's wrong here
DNS resolves domain names to IP addresses.
- ✗
ICMP
Why it's wrong here
ICMP is used for diagnostics (e.g., ping).
Visual reference
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 CC practice question is part of Courseiva's free ISC2 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 CC exam.