Certificate

I can differentiate between both the courses. You can take out your own reason which one is better.
A lot of difference is here between Red Hat and Ethical Hacking field.
The latter one is a field related to security issue for digital devices which are not constrained to a limited discipline.
But, Red Hat provides services to a limited domain and people get certified, to show expertise on a particular product.
Red Hat is mainly famous for its Linux distribution which is widely used as an enterprise server.
On the basis of this, choose which is better.

Hi Vandana,
Diploma in Interior Design and decor in International Academy for Certification and Training is a three months program. You can apply directly to the institute for admission. There is no entrance test as such but they might conduct an interview

Hi Disha,
NIOS generally is recognize but if you want to apply abroad to any country you should contact the universities directly and ask them. It will depend on the particular university or college if they will accept it or not. If they do it will also mean that your application will be evaluated more strictly compared to applicants who have done full time schooling.