Understanding core values is essential for UPSC exam preparation as it forms the foundation of a candidate's approach to governance and ethical dilemmas. Familiarity with values such as integrity, accountability, and fairness can guide aspirants in formulating well-rounded answers in the examination. These principles are vital in the context of public service, where aspiring civil servants are expected to adhere to a moral code. Candidates who grasp the significance of core values will be better equipped to tackle ethical questions and express their commitment to public service during interviews.