Question

What is the difference between the XMODEM and XMODEM/CRC file transfer protocols? Which provides a more reliable method of error detection and correction?

   What is the difference between the XMODEM and XMODEM/CRC file transfer protocols? Which provides a more reliable method of error detection and correction?

Understanding Data Communications: From Fundamentals to Networking

Understanding Data Communications: From Fundamentals to Networking

Gilbert Held 3rd Edition

Chapter 11, Problem 9

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Step 1

In its original form, XMODEM uses 128-byte data blocks and employs a checksum method for error detection. Each data packet contains a header, sequence number, data (128 bytes), and a single-byte checksum calculated by adding all bytes in the data portion. Show more…

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What is the difference between the XMODEM and XMODEM/CRC file transfer protocols? Which provides a more reliable method of error detection and correction?

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