DATA LINK LAYER WIRED NETWORKS
DATA LINK CONTROL DLC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Session layer
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Transport layer
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Network layer
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Data Link layer
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Detailed explanation-1: -Explanation: The checksum is used in the Internet by several protocols although not at the data link layer. Like linear and cyclic codes, the checksum is based on the concept of redundancy. Several protocols still use the checksum for error detection. Explanation: A 4 bit field defines the version of IPv4 protocol.
Detailed explanation-2: -The network layer is responsible for routing the data via the best physical path based on a range of factors including network characteristics, best available path, traffic controls, congestion of data packets, and priority of service, among others.
Detailed explanation-3: -Priority and Type of Service – specifies how the datagram should be handled. The first 3 bits are the priority bits. Total length – the length of the entire packet (header + data). The minimum length is 20 bytes, and the maximum is 65, 535 bytes.