Expected PSA-Sysadmin Exam Topics, as suggested by Certinia :

• Module 1: PSA Custom Settings, Configuration Groups, and Metadata: This section covers Lightning Components & Visualforce Pages, how to manage Lightning Pages, use Field Sets to Customize Lightning and/or Visualforce Pages, PSA Configuration Groups, Manage Configuration Groups, PSA Custom Settings, Review & Maintain Existing Custom Settings, and creating/importing Regions-Practices-Groups.
• Module 2: Configuration Management: In this section, the topics covered include General Configuration & UX customization, Customize Page Layouts, configuring Task Time Entry Mode, and creating Report and Dashboard Folders.
• Module 3: Automated Jobs & Scheduled Maintenance: In this section, the focus is on how to schedule Jobs Schedule/Review/Delete Scheduled Jobs According to Business Needs; Perform Routine Cleanup, Configuration in ‘Actuals Configuration Group’ and Set Mode for Calculation, and App Log Maintenance.
• Module 4: User Management: This section covers Security, how to manage User Access by Assigning & Managing, Permission Controls, User Access by Assigning Permission Controls, Workspaces, how to assign Workspaces to New Users, and how to maintain workspaces to Reflect Personas within the organization.