CCNA: Cisco Certified Network Associate — Question 1120

What is a characteristic of a Layer 2 switch?

Answer options

• A. responsible for sending data in a particular sequence
• B. uses routers to create collision domains
• C. avoids MAC address storage for faster transmission
• D. uses the data link layer for communications

Correct answer: D

Explanation

The correct answer is D because Layer 2 switches operate at the data link layer, using MAC addresses to forward frames within a local network. Options A and C are incorrect as they do not accurately describe the function of a Layer 2 switch, and option B is wrong because routers, not switches, are responsible for creating collision domains.