What are some common error detection techniques?

What are some common error detection techniques used in data transmission?

Common error detection techniques include checksums, parity bits, and cyclic redundancy checks (CRC). Would you like to know more about any specific technique?

Can you explain how checksums work?

Sure! A checksum is a value calculated from a data set to verify its integrity. When data is sent, the sender computes the checksum and sends it along. The receiver then calculates the checksum again and compares it to the sent value to check for errors.

What about cyclic redundancy checks?

Cyclic Redundancy Check (CRC) is a more advanced error detection technique that uses polynomial division to detect changes to raw data. It's widely used in network communications and file storage.

Are there any limitations to these techniques?

Yes, while these techniques can detect many errors, they can't correct them. Additionally, some errors may go undetected, especially if they occur in a way that doesn't change the checksum or CRC value.