DATA LINK LAYER WIRED NETWORKS
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ethernet
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point to point protocol
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hdlc
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all of the mentioned
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Detailed explanation-1: -Which of the following is a data link protocol? Explanation: There are many data link layer protocols. Some of them are SDLC (synchronous data link protocol), HDLC (High level data link control), SLIP (serial line interface protocol), PPP (Point to point protocol) etc.
Detailed explanation-2: -Which of the following protocols does not exist at the data link layer? Explanation : Secure MQTT is a session layer protocol. It is an extended version of the MQTT protocol that uses encryption based on lightweight attribute-based encryption.
Detailed explanation-3: -Data-link layer: This layer is responsible for moving frames from one hop to next. The Data-link layer divides the stream of bits received from the network layer into manageable units called frames. It adds a header to the frame to define the sender and receiver of the frame.