CCNA: Cisco Certified Network Associate — Question 1131

What is a characteristic of a Layer 2 switch?

Answer options

• A. tracks the number of active TCP connections
• B. maintains stateful transaction information
• C. filters based on a transport layer protocol
• D. supports segmentation using tagging protocols

Correct answer: D

Explanation

The correct answer is D because Layer 2 switches use tagging protocols like VLAN tagging to support network segmentation. Options A and B are characteristics of Layer 4 devices, while C refers to filtering that occurs at a higher layer, not typical of a Layer 2 switch.