zerbib on "[Plugin: UpdraftPlus - WordPress Backup and Restoration] UpdraftPlus not working ?"

Hi David! Everything seems to be OK after following your message
1 - Is it normal to have 5 files in my backup (plugins,database,themes,other and upload ) and that all theses backup are less than before (about 200Mo instead of 1.9 Go ... with backWPup )
2 - And, last question,how should I restore my website in case of trouble :the 5 backups one by one ?
Sorry for theses (stupid ) questions and thousands of thank's for your help
Bests Bibo