what does mean by CRC( cyclic redundancy check)?

Answer 1

A cyclic redundancy check (CRC) is a type of hash function used to produce a checksum – a small, fixed number of bits – against a block of data, such as a packet of network traffic or a block of a computer file. The checksum is used to detect errors after transmission or storage

Answer 2

cyclic redundancy check (CRC) is a type of hash function used to produce a checksum – a small, fixed number of bits – against a block of data, such as a packet of network traffic or a block of a computer file. The checksum is used to detect errors after transmission or storage. A CRC is computed and appended before transmission or storage, and verified afterwards by the recipient to confirm that no changes occurred on transit. CRCs are popular because they are simple to implement in binary hardware, are easy to analyze mathematically, and are particularly good at detecting common errors caused by noise in transmission channel

Answer 3

The CRC is a very technique 2 obtain data reliability.CRC technique is used 2 protect blocks of data called Frames. with this the transmitter adds an extra n- bit sequence to every frame called Frame Check Sequence (FCS). The FCS holds redundant information about the frame that helps the transmitter detect errors in the frame. CRC is one of the most used techniques for error detection in data communications. the major adv. that makes this a powerful tech is extreme error detection capabilities, little overhead and easy for implementation.

Answer 4

CRC is just a way for your computer to check for errors when it is trying to copy something.
"CheckSum" or "chksum" is used for smaller files.
"CRC" is used for larger files.
I believe that CRC actually takes larger files and breaks them into smaller pieces and then uses checksum to check the smaller file fragments.

You will see this often when you are trying to copy large files, like movie files, onto your computer.
A lot of the DVD producers will intentionally write "bad" data onto their DVDs. Your DVD player will just ignore it, since it isn't part of the movie. But your computer, while faithfully trying to craete an exact copy of the data, will read the error and stoptrying to copy what it thinks is "Bad" data.

I hope this answers your question!

Answer 5

U get a CRC blunders whilst the information it is being examine at modern is corrupted.that's extra problem-unfastened whilst information is transmitted over a community. on your case i think of u downloaded this record , so it corrupted or it have been given corrupted whilst u burned it to disc.Or ur disc is broken. If ur working setup from disc attempt to run it from hdd by making use of copying the record to the hdd first.

Answer 6

That's a protection!
Is this a dvd that you try to copy?
If you have any dvd installed and your not able to copy it, you ll need to copy it in several parts ( kind of complicated to explaing in distance) but try to cut the longer part of the file you"re able to copy before the protection section (you'll need to find by your self)after copy the next longer part your able and so on... After with dvd shrink put them together in the same folder!

Answer 7

It's a routing error