A

Admin • 833.24K Points
Coach

Q. Which device operates at the Data Link Layer of OSI?

  • (A) Switch
  • (B) Router
  • (C) Hub
  • (D) Gateway

Explanation by: Admin

A switch works at the Data Link Layer (Layer 2) using MAC addresses. Routers operate at Layer 3, hubs at Layer 1, and gateways at multiple layers.

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