At the data link layer, error detection is primarily achieved by Cyclic Redundancy Code (CRC). Here's a step-by-step explanation:

1. The data link layer is the second layer in the OSI model of computer networking. This layer is responsible for transferring data between adjacent network nodes in a wide area network or between nodes on the same local area network.

2. One of the key tasks of the data link layer is to ensure that the data is delivered error-free from the source node to the destination node. This is achieved through various error detection and correction techniques.

3. Cyclic Redundancy Code (CRC) is one such error detection technique used at the data link layer. CRC generates a check value based on the data that is to be sent and appends this to the data. At the receiving end, the same CRC calculation is performed on the received data. If the calculated CRC value matches the received CRC value, the data is considered error-free.

4. Bit stuffing is another technique used at the data link layer, but it is primarily used for synchronization and not error detection. In bit stuffing

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At the data link layer, error detection is primarily achieved by Cyclic Redundancy Code (CRC). Here's a step-by-step explanation:

1. The data link layer is the second layer in the OSI model of computer networking. This layer is responsible for transferring data between adjacent network nodes in a wide area network or between nodes on the same local area network.

2. One of the key tasks of the data link layer is to ensure that the data is delivered error-free from the source node to the destination node. This is achieved through various error detection and correction techniques.

3. Cyclic Redundancy Code (CRC) is one such error detection technique used at the data link layer. CRC generates a check value based on the data that is to be sent and appends this to the data. At the receiving end, the same CRC calculation is performed on the received data. If the calculated CRC value matches the received CRC value, the data is considered error-free.

4. Bit stuffing is another technique used at the data link layer, but it is primarily used for synchronization and not error detection. In bit stuffing

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At the data link layer, error detection is primarily achieved by Cyclic Redundancy Code (CRC). Here's a step-by-step explanation:

1. The data link layer is the second layer in the OSI model of computer networking. This layer is responsible for transferring data between adjacent network nodes in a wide area network or between nodes on the same local area network.

2. One of the key tasks of the data link layer is to ensure that the data is delivered error-free from the source node to the destination node. This is achieved through various error detection and correction techniques.

3. Cyclic Redundancy Code (CRC) is one such error detection technique used at the data link layer. CRC generates a check value based on the data that is to be sent and appends this to the data. At the receiving end, the same CRC calculation is performed on the received data. If the calculated CRC value matches the received CRC value, the data is considered error-free.

4. Bit stuffing is another technique used at the data link layer, but it is primarily used for synchronization and not error detection. In bit stuffing

At data link layer error detection is achieved byBit stuffingHamming codesEqualizationCyclic Redundancy Code

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