Question

Interview question: Why HTTP is used for web document transfer instead of FTP even though FTP used to be generally considered faster. ?

Comments

http://stackoverflow.com/questions/717200/comparing-http-and-ftp-for-transferring-files

Answer 1

FTP need Authorization for any type of file transfer. If FTP is used instead of http , all users will be  required to have get the credentials for  accessing any thing on web . Hence it's not possible to use FTP for webdocument transfer.

I guess , FTP is faster than http for large file transfer.