ServiceNow Certified System Administration Practice 2025 – All-In-One Guide to Master Your System Administration Certification!

The Data Dictionary is a key component in ServiceNow that defines how records relate to each other. It serves as a repository of metadata, detailing the structure of the database tables, the fields within those tables, and the relationships between different tables, or records. Each table in ServiceNow can have relationships with other tables, which are documented in the Data Dictionary. This allows for a clearer understanding of how data interconnects across the ServiceNow instance, facilitating better data management and reporting.

In contrast, Configuration Items refer to the individual components that need to be managed in order to deliver IT services and are part of the broader Service Asset and Configuration Management process. The Service Catalog is a user-friendly interface that allows users to request services or products, focusing on service delivery rather than data relationships. Task Management is primarily concerned with tracking and managing tasks and activities within ServiceNow, rather than defining relationships between different data records.