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A cyclic redundancy check error or CRC error occurs when the data verification value is a redundancy. This is used in detecting common errors caused by noise in transmission channels.

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How does Ethernet handle error detection?

Each Ethernet frame contains a trailer with a cyclic redundancy check (CRC) of the frame contents. After reception of a frame, the receiving node creates a CRC from the bits in the frame to compare to the CRC value in the frame trailer. If these two CRC calculations match, the frame can be trusted as being received without error. The trusted frame will then be processed. A frame received with bad, nonmatching CRC's will be discarded.


What is the purpose of the Frame Check Sequence field in a Data Link frame trailer?

The purpose of the FCS field is to transmit the extra checksum characters added to a frame in "xyz" protocol for error detection. The most popular algorithm I've used is the CRC (cyclic redundancy check) employed in things like ethernet or PPP on a routed network. Keep in mind that ethernet defines that the errored frame should be discarded, but ethernet takes no action to cause the frame to be retransmitted. Typically most tech's see it as unnecessary overhead and opt to rely on CSMA\CD or CSMA\CA if the route is not deemed to carry time sensitive data. Hope that clears things up a bit.


How do you do an error check?

in Microsoft word you click f3 and it should do a spelling and grammar check


Internet control messaging protocol?

internet control messaging protocol sent the massage error free because its check the all kinds of error and sent.


What is the error detection technique that can detect errors with only one bit?

(a) simple parity check (b) two-dimensional parity check (c) crc (d) checksum

Related Questions

How do you correct for a cyclic redundancy check?

A Cyclic Redundancy Check for DvDs with protection can easily be overcame. This is a detailed version of how to fix it (its really simple):Cyclic Redundancy Check Error - Data Error While Burning Dvds found at:http://hubpages.com/hub/cyclic-redundancy-check-errorI learned how to do it from there!


What is a CRC error?

cyclic redundancy check .A cyclic redundancy check (CRC) is an error-detecting code designed to detect accidental changes to raw computer data, and is commonly used in digital networks and storage devices such as hard disk drives.


What transmission synchronization methods uses the cyclic redundancy check method for error checking?

Synchronous


Error detection at data link layer is achieved by?

Error detection at data link level is achieved by using a Frame Check Sequence (FCS) method like Parity, Checksum Calculation or Cyclic Redundancy Check (CRC).


How do repair a memory stick with a cyclic redundancy error?

not easily


Is the cyclic redundancy check better than hamming code?

It depends on what you are doing. The cyclic redundancy check will only detect an error, while the hamming code can also correct many types of errors. However to perform this correction the extra error detection parity bits required in hamming code are many more than the bits needed for cyclic redundancy check, per data byte being checked. Normally cyclic redundancy check is done on large block of data that can be resent or retried to get the correct block of data (e.g. telecommunication channels, disk sectors). Normally hamming code is done on individual bytes or words of computer memory.


What is a cyclic redundancy error?

This is where Windows cannot read a disk consistently. Windows will first read a bit of data from the disc, copy it, and then check again to make sure that the copy matches the original. If it does not, it tries again. if it still cannot get a consistent reading (after about ten tries), it will throw a "cyclic redundancy error" message.


How do you remove the data error cyclic redundancy error occurs while downloading data from internet?

how data errors occur?


What are the steps to resolve cyclic redundancy error in windows XP?

Linux seems to have corrected my issues


What is a cyclic redundancy?

This is where Windows cannot read a disk consistently. Windows will first read a bit of data from the disc, copy it, and then check again to make sure that the copy matches the original. If it does not, it tries again. if it still cannot get a consistent reading (after about ten tries), it will throw a "cyclic redundancy error" message.


What causes cyclic redundancy error when using sp2 CD update and how can it be updated?

disk errors - time to buy a new drive


Why does cyclic redundancy check occur in CD and DVD?

When you see this error message come up, it means that the drive could not correctly read the disc. This is caused by either a defective drive, or a dirty / damaged disc.