Candidates prepare for questions on governance and ethics by studying essential principles and frameworks that guide public administration. This preparation involves familiarizing themselves with case studies, ethical dilemmas, and policies that reflect good governance practices. They often analyze real-life scenarios to understand the implementation of ethical standards in governance. Engaging in discussions and participating in mock interviews can also enhance their understanding of these topics. Incorporating current affairs with ethical implications into their study helps candidates formulate well-rounded responses during exams.