I applied in-person. The process took 8 months. I interviewed at US Army (Seattle, WA) in Nov 2014
Interview
need to get Top security clearance qualified. And also in order to be a US Army commissioned officer, one has to fulfill and must acquire bachelor's degree. One has to physically fit and mentally strong. there are several commissioning sources which are ROTC, OCS, direct commissioning and Military Academy.
Interview questions [1]
Question 1
the government investigation agent will ask several background check