If I were you, I would ask for clarification of what is expected. Database housekeeping could include any number of things. It might be cleaning up audit (*.aud) and trace (*.trc) files, or backing up and removing archived redo logs. It could be checking internal audit storage or making sure large tables aren’t getting too unruly… maybe they need to be partitioned, or archived to another location. It’s possible that they want indexes rebuilt or user accounts removed for old employees… just any number of things could be included. Housekeeping is just a very general term, so unless you are sure of what is expected, I would ask questions.