How does data backup work in Windows XP ?

Can you answer Silly Shelu’s question about Data Recovery?:

1] Does the sytem creat an exact replica of the data selected for backup ?

2] Where is the backup file stored and will it be not lost if hard disk fails ?

3] How is the data restored using backup file ? If I have a tree of folderes, sub-folders, files etc. which have been backed up, will they be restored in the same order during the data restoration process ?

4] What are the pros and cons of backing up data on an external disk like CD or DVD ?

5] How does the backup file act during restoration process ?

PS: Please do not suggest a web article unless it has a comprehensive information.

Hard Disk Data Recovery Services

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