Based on the Han dynasty civil service, the following statements are true:
- Exams are required to qualify - The Han dynasty is known for establishing a civil service examination system.
- Positions are not hereditary - While some aspects of governance were influenced by aristocracy, the civil service positions were largely based on merit rather than being passed down through family lines.
Therefore, the two points that are true about the Han dynasty civil service are that exams are required to qualify and positions are not hereditary.