Database Management
& ACL Security
The highest-weighted exam domain. Master schema design using Import Sets and Transform Maps, CMDB relationship modeling, and the layered Access Control Rule engine that governs record-level and field-level security across every ServiceNow table.
At 27%, this domain dominates the exam. Every enterprise ServiceNow deployment requires secure data modeling and tight access control. Examiners test ACL evaluation order, CMDB class inheritance, Import Set coalesce logic, and the sys_dictionary schema — all of which require precise, not approximate, understanding.
Part 4 Study Modules
Schema & Import Sets
Design and extend database tables using the sys_dictionary. Configure Import Set tables, Transform Maps, coalesce fields, and Data Source records to load external data reliably.
Relationships & CMDB
Model CI relationships in the Configuration Management Database. Understand class inheritance via the cmdb_ci base table, relationship types, and how Discovery populates CI data.
Access Control Rules (ACL)
Build layered ACL rules to govern who can read, write, create, and delete records at the table and field level. Understand ACL evaluation order, the security_admin role, and conditional script logic.
Auditing, History & Archiving
Enable field-level audit trails, query the sys_audit table, and configure archive rules to manage data lifecycle. Understand what triggers an audit record and how to retrieve historical field values.