The layer that actually carries data via cables or radio signals is the:
A) Transport layer
B) Physical layer
C) Network layer
D) Data-link layer

Question

Quizplus · Accepted Answer

The Physical layer is responsible for the transmission and reception of unstructured raw data between a device and a physical transmission medium. It converts the digital bits into electrical, radio, or optical signals.

The Layer That Actually Carries Data Via Cables or Radio