CRC, or Cyclic Redundancy Check, is a method used in digital networks and storage devices to detect accidental changes to raw data. Here's a step-by-step explanation of how it works, along with a simple diagram.

1. **Data Division**: The first step in the CRC process is to divide the data by a predetermined polynomial. This polynomial is agreed upon by the sending and receiving devices. The data is divided using binary division.

2. **Remainder Calculation**: After the division, the remainder is calculated. This remainder is the CRC, which is appended to the end of the data.

3. **Data Transmission**: The data, along with the CRC, is then sent to the receiving device.

4. **Data Checking**: The receiving device performs the same division on the received data. If the remainder matches the received CRC, the data is considered valid. If not, the data is considered corrupted.

Here's a simple diagram to illustrate the process:

```
Sender Receiver
Data --------- | CRC Calculation | --------- Data + CRC
|-----------------| | CRC Checking |
|--------------|
Valid / Corrupt Data
```

In this diagram, the sender calculates the CRC and appends it to the data. The receiver then checks the data using the same CRC calculation. If the calculated CRC matches the received CRC, the data is considered valid. If not, the data is considered corrupt.

Question

CRC, or Cyclic Redundancy Check, is a method used in digital networks and storage devices to detect accidental changes to raw data. Here's a step-by-step explanation of how it works, along with a simple diagram.

1. **Data Division**: The first step in the CRC process is to divide the data by a predetermined polynomial. This polynomial is agreed upon by the sending and receiving devices. The data is divided using binary division.

2. **Remainder Calculation**: After the division, the remainder is calculated. This remainder is the CRC, which is appended to the end of the data.

3. **Data Transmission**: The data, along with the CRC, is then sent to the receiving device.

4. **Data Checking**: The receiving device performs the same division on the received data. If the remainder matches the received CRC, the data is considered valid. If not, the data is considered corrupted.

Here's a simple diagram to illustrate the process:

```
Sender                                 Receiver
Data ---------> | CRC Calculation | ---------> Data + CRC
                |-----------------|            | CRC Checking |
                                                |--------------|
                                                Valid / Corrupt Data
```

In this diagram, the sender calculates the CRC and appends it to the data. The receiver then checks the data using the same CRC calculation. If the calculated CRC matches the received CRC, the data is considered valid. If not, the data is considered corrupt.

Knowee AI · Accepted Answer

CRC, or Cyclic Redundancy Check, is a method used in digital networks and storage devices to detect accidental changes to raw data. Here's a step-by-step explanation of how it works, along with a simple diagram.

1. **Data Division**: The first step in the CRC process is to divide the data by a predetermined polynomial. This polynomial is agreed upon by the sending and receiving devices. The data is divided using binary division.

2. **Remainder Calculation**: After the division, the remainder is calculated. This remainder is the CRC, which is appended to the end of the data.

3. **Data Transmission**: The data, along with the CRC, is then sent to the receiving device.

4. **Data Checking**: The receiving device performs the same division on the received data. If the remainder matches the received CRC, the data is considered valid. If not, the data is considered corrupted.

Here's a simple diagram to illustrate the process:

```
Sender                                 Receiver
Data ---------> | CRC Calculation | ---------> Data + CRC
                |-----------------|            | CRC Checking |
                                                |--------------|
                                                Valid / Corrupt Data
```

In this diagram, the sender calculates the CRC and appends it to the data. The receiver then checks the data using the same CRC calculation. If the calculated CRC matches the received CRC, the data is considered valid. If not, the data is considered corrupt.

Explain CRC protocol with suitable diagram.

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