Computers & IT (Non-Engg)

Yes, DCA is a short-term and a value added course.
You can do it whenever you want.
Good luck.

Ethical hackers are specialised cyber security experts who work for all organizations which have an internet presence and use extensive use of web technologies for business. Ethical hackers role is a proactive one as they prevent cyber- crimes and protect cyber space from intrusion. They ensure data

Visit the comparison section of Shiksha app and select DCA, you will get a chart, you can easily recognize the difference.

BBA stands for Bachelor of Business Administration & BCA stands for Bachelor of Computer Applications.
Both these courses are Graduation level courses. The duration of the both the courses is 3 years.
BCA course is technical oriented where in variety of computer related subjects or technical subjects

No, don't go for BCA then. BCA requires strong concepts of +1 and +2 mathematics. But nothing is impossible. If you have passion for computers you can handle mathematics with your hard work.

MS excel has huge scope in terms of job, because every company work related to it, as well as do MS office and other business related course which will help you for securing a good job.