200-901 Network Fundamentals Practice Question
What is the primary function of a switch in a 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
✓
Forward frames based on MAC addresses
Switches operate at Layer 2 and forward frames based on MAC addresses within a LAN.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Forward frames based on MAC addresses
Why this is correct
Correct. Switches use MAC addresses.
- ✗
Amplify wireless signals
Why it's wrong here
That is a wireless access point or repeater.
- ✗
Forward packets based on IP addresses
Why it's wrong here
That is a router's function.
- ✗
Convert data to electrical signals
Why it's wrong here
That is a hub or physical layer device.
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 200-901 practice question is part of Courseiva's free Cisco 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 200-901 exam.