Ops335 1302 faq

1. How can you duplicate data across files, devices, partitions, and volumes?What does the noerror and sync option do?
2. How can you backup and restore the Master boot record?
   1. How can you include partition table information when backing up or restoring?
3. How can dd be used to modify data in place in a file?
4. How can dd be used to wipe out an entire disk?
5. How can dd be used for data recovery?
   1. ddrescue what can it be used for?
6. How can dd be used for benchmarking drive performance?
7. How can dd be used for generating a file with random sized data?
8. How can dd be used to convert a file to upper case?
9. How can dd be used to create empty files with different file sizes?
10. What are the different practical uses for tune2fs command?