Hello

BOth the courses are good and in demand so I will suggest you to go with the subject that interests you the most. That being said, to be employed as an ethical hacker you need to have a bachelors degree in either Computer Science or IT (Preferably) to earn a good sum of money. Not only this, the more certificates you ge the better and the most important are CEH certifications. As far as business analytics is concerned, you need to get a master's degree here to earn good. It is an on demand course and on an anverage people with a masters degree in it can earn around 11 lakh per year.

A diploma course in both the subjects will be just the beginning so it is up to you which line interests you to work hard enough to make a career in it.