INTRODUCTION
PROTOCOL LAYERING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mechanical
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Electrical
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Functional
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None of the Above
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Detailed explanation-1: -The physical layer defines the relationship between a device and a transmission medium, such as a copper or optical cable. This includes the layout of pins, voltages, cable specifications, hubs, repeaters, network adapters, host bus adapters (HBA used in storage area networks) and more.
Detailed explanation-2: -Design Issues with Physical Layer in OSI Model : Physical layer is concerned with sending raw bits of data over the communication channel. The design issues majorly deal with mechanical, electrical, and the physical transmission medium, which lies below the physical layer.
Detailed explanation-3: -The physical layer is responsible for sending computer bits from one device to another along the network. Its role is determining how physical connections to the network are set up, as well as how bits are represented into predictable signals–as they are transmitted either electrically, optically or by radio waves.