📊 Computer Networking
Q. Which device operates at the Data Link Layer of OSI?
  • (A) Switch
  • (B) Router
  • (C) Hub
  • (D) Gateway
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✅ Correct Answer: (A) Switch

Explanation: 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.

Explanation by: Ankit Singh
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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