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A DOS checksum error occurs when the checksum value calculated for a file or data block does not match the expected value, indicating potential data corruption or integrity issues. This can happen during file transfers, disk reads, or when accessing damaged storage media. The error can prevent the system from correctly reading or executing the affected file, leading to operational problems. Users may need to verify the integrity of the data or perform repairs to resolve the issue.
What else can I help you with?
How do you run checksum from DOS prompt?
You can do it by using "chkdsk" command.
What does P0602 Checksum Error mean?
Trouble code P0602 means:Control module programming error
IP TCP and UDP all discard a packet that arrives with a checksum error and do not attempt to notify the source Why?
they all discard it because if checksum error error it mean data is sent byother user and it forget its rout due to fault of channel if reach thereso it is not need to notify the source about this error
IP TCP and UDP all discard a packet that arrives with a checksum error and do not?
Only TCP will automatically discard a packet with a bad checksum. UDP packets have a checksum field, but it is rarely used, and then only by the application (not UDP itself)
What is the name of an error-checking procedure that uses a formula to calculate a numeric value?
checksum
IP TCP and UDP all discard a packet that arrives with a checksum error and do not attempt to notify the source?
they all discard it because if checksum error error it mean data is sent by other user and it forget its rout due to fault of channel if reach there so it is not need to notify the source about this error (Waqas Qadeer)
Why did the Checksum values change with each new request?
Every packet has a new set of error detection assigned to it, the Checksum is a part of this process. The error correction occurs in the transport layer where the ACK will fail and the receiving host will request the packet to be sent again.
How do you calculate checksum value for a message?
To calculate a checksum value for a message, first, divide the message into fixed-size blocks (often bytes). Then, sum the binary values of these blocks together, and if there's an overflow, wrap around and add it back to the sum. Finally, the checksum is typically obtained by taking the bitwise complement of the final sum. This checksum can then be appended to the message for error-checking purposes.
What is invalid checksum?
An invalid checksum indicates that the data integrity check has failed, meaning the data may have been altered or corrupted during transmission or storage. Checksums are numerical values generated from a set of data, and they are used to verify that the data remains unchanged. If the calculated checksum of received data does not match the expected checksum, it suggests an error, prompting a retransmission or further investigation.
Why is header checksum required in TCP?
Its used to detect an error if the packet may be mis-routed. I'm not 100% sure.
Which error detection method involves polynomials?
The error detection method that involves polynomials is known as Cyclic Redundancy Check (CRC). In CRC, data is treated as a polynomial and divided by a predetermined generator polynomial, with the remainder serving as the checksum. This checksum is appended to the data before transmission, allowing the receiver to perform the same polynomial division to check for errors. If the remainder matches, the data is considered error-free; otherwise, an error is detected.
List two specific methods used on computers and networks guarantee that the data is correct at the destination?
Error checking, ie. checksum
