0 votes 0 votes Why is it said that FTP sends control information “out-of-band”? Computer Networks computer-networks kurose-and-ross application-layer-protocols descriptive + – ajaysoni1924 asked Apr 10, 2019 ajaysoni1924 289 views answer comment Share Follow See 1 comment See all 1 1 comment reply noob_coder commented May 30, 2019 reply Follow Share FTP uses two different ports , one for control information (PORT 21) and other for exchanging Data (PORT 20). Thus it is called out-of -band. HTTP is In-Band 0 votes 0 votes Please log in or register to add a comment.