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Computer Networks
Physical Layer
Q
The physical layer is concerned with ___________
AA. Bit-by-bit delivery
BB. Process to process delivery
CC. Application to application delivery
DD. Port to port delivery
Correct Answer:
A. A. Bit-by-bit delivery
Explanation:
Physical layer deals with bit to bit delivery in networking. The data unit in the physical layer is bits. Process to process delivery or the port to port delivery is dealt in the transport layer. The various transmission mediums aid the physical layer in performing its functions.