Learn the primary function of a trunk link in VLAN configurations for the CCNA 200-301 exam. Understand how trunk links enable multiple VLANs to share a single physical connection using VLAN tagging protocols like 802.1Q.
Table of Contents
Question
What is the primary function of a trunk link in VLAN configurations?
A. Carries multiple VLANs over a single link
B. Blocks broadcast traffic
C. Carries only untagged traffic
D. Allows inter-VLAN routing
E. Connects only end-user devices
Answer
A. Carries multiple VLANs over a single link
Explanation
A trunk link allows multiple VLANs to pass over a single physical connection using 802.1Q or ISL tagging.
A trunk link’s primary function in VLAN configurations is to carry multiple VLANs over a single physical link. Trunk ports use VLAN tagging protocols such as IEEE 802.1Q to identify and separate traffic from different VLANs as it traverses the trunk. This allows switches to transmit frames from multiple VLANs across one connection, optimizing network infrastructure and enabling VLANs to span multiple switches without requiring a dedicated link for each VLAN.
Trunk links are essential for scalable network segmentation, efficient bandwidth usage, and maintaining logical separation of broadcast domains across interconnected switches.
Cisco Certified Network Associate CCNA 200-301 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Cisco Certified Network Associate CCNA 200-301 exam and earn Cisco Certified Network Associate CCNA 200-301 certification.