Doing CNA course in jetking. is tat useful for de students who completed diploma in computer science ? & how.?

Hi. i have done my diploma in computer science nd im planning to join for CNA course in jet king. is tat useful. nd right field for girls.? wat type of job i may get nd salary package.? right now im working as an admin in school. is der any other field than dis. pls suggest., i'm confused.