NETWORK LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The purpose of the Network Access(or Data Link) layer is
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Prepares or presents the data (email, file, message) for /from transmission-including applying encryption/decryption
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Ensures reliable transmission of data across the network.
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Ensures the data is correctly routed through the network
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Responsible for encoding the data to be transmitted on the actual cabled or wireless channel.
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Explanation:
Detailed explanation-1: -It makes sure the appropriate physical protocol is assigned to the data. The data link layer is the second layer in the OSI Model. The three main functions of the data link layer are to deal with transmission errors, regulate the flow of data, and provide a well-defined interface to the network layer.
Detailed explanation-2: -The data-link layer identifies the network protocol type of the packet, in this instance TCP/IP. The data-link layer also provides error control and “framing.” Examples of data-link layer protocols are Ethernet IEEE 802.2 framing and Point-to-Point Protocol (PPP) framing.
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