osi model layer that interacts with application programs that incorporate a communication component such as your internet browser and mail. - service advertisement. - application services.
layer 7 of the osi model, which interacts with application programs that incorporate a communication component such as your internet browser and email  ex) http, ftp, smtp
Health Minister Manto-Tshabalala Msimang is not fit to preside over an anti-retroviral treatment rollout plan , according to some opposition parties .