NETWORK LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the purpose of the OSI physical layer?
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Controlling access to media.
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Transmitting bits across the local media.
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Exchanging frames between nodes over physical network media.
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Performing error detection on received frames.
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Explanation:
Detailed explanation-1: -The role of the OSI Physical layer is to encode the binary digits that represent Data Link layer frames into signals and to transmit and receive these signals across the physical media-copper wires, optical fiber, and wireless-that connect network devices.
Detailed explanation-2: -The physical layer is responsible for the communication of unstructured raw data streams over a physical medium.
Detailed explanation-3: -The physical layer sometimes plays an important role in the effective sharing of available communication resources, and helps avoid contention among multiple users. It also handles the transmission rate to improve the flow of data between a sender and receiver.
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