Database administration is a useful area to understand in an MCA because it connects academic knowledge with practical technology work. Students should learn the concept, practise it through small exercises and then apply it in a project. When preparing for an IT role, be ready to explain how database administration works and where you would use it in a real application. This point is specifically relevant to the database administration aspect of MCA study. For this specific question about database administration, the practical takeaway is to relate the concept to your own MCA learning goal.