TRANSPORT LAYER
TRANSMISSION CONTROL PROTOCOL TCP
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Why were the Data Link & Physical layers divided into two separate layers in the current TCP/IP model?
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Because the number of protocols grew too large for the link layer to handle it by itself
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Because networks use different types of transmission media (ethernet wire, fiber optic cable, and radio signals) to transmit bits
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Because the original TCP/IP model was too complicated for many typical uses
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None of the above
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Explanation:
Detailed explanation-1: -The main responsibility of the Data Link Layer is to transfer the datagram across an individual link. The Data link layer protocol defines the format of the packet exchanged across the nodes as well as the actions such as Error detection, retransmission, flow control, and random access.
Detailed explanation-2: -Physical layer provides its services to Data-link layer. Data-link layer hands over frames to physical layer. Physical layer converts them to electrical pulses, which represent binary data. The binary data is then sent over the wired or wireless media.
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