Calculating CRC for Data Bits 100100 with Generator 1001

Understanding Cyclic Redundancy Check (CRC)

Cyclic Redundancy Check (CRC) is a method used in digital networks and storage devices to detect accidental data changes. It involves generating a checksum based on the data bits to ensure data integrity.

Calculating CRC for Data Bits 100100

Assuming that the generator is 1001 and the data bits are 100100, we need to calculate the corresponding CRC bits. The process involves binary division with the generator acting as the divisor and the data as the dividend.

To determine the CRC bits:

1. Append the data bits 100100 with zeros equal to the number of bits in the generator minus 1.
2. Perform binary division with the generator as the divisor and the extended data as the dividend.
3. The remainder after the division process is the CRC.

What are the CRC Bits for 100100 Data Bits?

Final Answer: The CRC for the 1001 generator with the 100100 data sequence is 011.

Explanation: The calculated CRC bits 011 do not match any of the given choices (000, 111, 1001). While option A (000) is the closest, it is not the correct CRC value for the provided data bits.

1. a. 000
2. b. 111
3. c. 1001

The Cyclic Redundancy Check (CRC) for 1001 generator bit pattern and 100100 data bit sequence is 011, which is not among the given choices. The closest option is 000, but it is not correct.