What is CRC-4 (Cyclic Redundancy Check 4)? CRC-4 (Cyclic Redundancy Check 4) is a form of cyclic redundancy checking -- a method of checking for errors in transmitted data -- that is used on E1 trunk ...
You send a file, but how do you know it arrived intact? In other words, how do you know that it didn’t get cut off, garbled, or changed somehow? Simplistically, you could just add up all the bytes in ...