Question

what is the need of backup utilities ?

Answer 1

the backup utilities are needed bcoz in the time of need we can restore our data. also, by backing up the data the space of the particular device can be increased. 

Answer 2

Backup utilities are computer programs used to perform backup; they create supplementary exact copies of files, databases or entire computers. These programs may later use the supplementary copies to restore the original contents in the event of data loss.