Cisco Certified Network Associate (CCNA) 200-301 — Question 266

The correct answer is B. Option B: The trunk forms, but the mismatched native VLANs are merged into a single broadcast domain.

Explanation

A trunk carries traffic for multiple VLANs between network devices. Frames in the native VLAN are untagged by default on an 802.1Q trunk. A VLAN creates a separate Layer 2 broadcast domain on switched infrastructure.