At which layer of ISO/OSI does the fiber optics work?

The correct answer is D. Physical layer. The Answer: Physical layer The Physical layer is responsible for the transmission of the data through the physical medium. This includes such things as cables. Fiber optics is a cabling mechanism which works at Physical layer of OSI model All of the other answers are incorrect.

Submitted by anjalisingh· Apr 18, 2026Network and Communications Security

Question

At which layer of ISO/OSI does the fiber optics work?

Options

ANetwork layer
BTransport layer
CData link layer
DPhysical layer

How the community answered

(25 responses)

B
8% (2)
C
4% (1)
D
88% (22)

Explanation

The Answer: Physical layer The Physical layer is responsible for the transmission of the data through the physical medium. This includes such things as cables. Fiber optics is a cabling mechanism which works at Physical layer of OSI model All of the other answers are incorrect.

Topics

#OSI Model#Physical Layer#Fiber Optics#Networking Fundamentals

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