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Questions and Answers
Which of the following best describes the purpose of a cyclic redundancy check (CRC)?
Which of the following best describes the purpose of a cyclic redundancy check (CRC)?
- To encrypt digital data
- To compress digital data
- To add redundancy to digital data (correct)
- To correct errors in digital data
What is the basis of the algorithm used in cyclic redundancy checks (CRCs)?
What is the basis of the algorithm used in cyclic redundancy checks (CRCs)?
- Polynomial division (correct)
- Matrix operations
- Modular arithmetic
- Prime numbers
Why are CRCs popular in digital networks and storage devices?
Why are CRCs popular in digital networks and storage devices?
- They are easy to implement in binary hardware (correct)
- They compress digital data
- They provide encryption for digital data
- They are resistant to noise in transmission channels
What is the purpose of repeating the CRC calculation on retrieval of data?
What is the purpose of repeating the CRC calculation on retrieval of data?
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What is the occasional use of the fixed-length check value function in CRCs?
What is the occasional use of the fixed-length check value function in CRCs?
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