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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Codewords
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Datawords
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Network
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Encryption and Decryption
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Detailed explanation-1: -What Is a Cyclic Redundancy Check (CRC)? The CRC is a network method designed to detect errors in the data and information transmitted over the network. This is performed by performing a binary solution on the transmitted data at the sender’s side and verifying the same at the receiver’s side.
Detailed explanation-2: -Cyclic redundancy check (CRC) is a powerful error-detection technique, which is widely used in digital networks, such as LANs and WANs, as well as in some storage devices.
Detailed explanation-3: -The primary benefit of CRC is that it can detect more types of data errors than the other two methods. For instance, it can detect all single bit errors, all double bit errors, any odd number of errors, and most burst errors.
Detailed explanation-4: -CRC Example For example, this could be a packet carrying sequence number 0x34, acknowledgment number 0x56, having bits L, D, and A all set, and having 3 payload bytes 0x01, 0x02, and 0x03. The 16-bit checksum for this data is: 0xc70e. Note that the binary representation of the CRC-16 polynomial is 0x18005.