Understanding Cisco Cybersecurity Fundamentals (SECFND, legacy) — Question 92

What is a trunk link used for?

Answer options

• A. To pass multiple virtual LANs
• B. To connect more than two switches
• C. To enable Spanning Tree Protocol
• D. To encapsulate Layer 2 frames

Correct answer: A

Explanation

A trunk link is specifically designed to carry traffic for multiple virtual LANs (VLANs) over a single connection, making option A the correct choice. Options B, C, and D are incorrect because while trunk links can connect multiple switches, they are not limited to that function, and they do not specifically enable Spanning Tree Protocol or encapsulate Layer 2 frames as their primary role.