📊 Computer Networking
Q. Which layer is responsible for physical transmission of data?
  • (A) Data Link Layer
  • (B) Network Layer
  • (C) Transport Layer
  • (D) Physical Layer
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✅ Correct Answer: (D) Physical Layer

Explanation: The Physical Layer transmits raw bits over the physical medium like cables and wireless. Other layers handle logical addressing and data management.

Explanation by: Ankit Singh
The Physical Layer transmits raw bits over the physical medium like cables and wireless. Other layers handle logical addressing and data management.

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