DS0-001 · Question #120
DS0-001 Question #120: Real Exam Question with Answer & Explanation
The correct answer is D: Data dictionary. A data dictionary documents the system catalog by defining all data elements within a database - including field names, data types, relationships, constraints, and meanings - making it the authoritative reference for understanding the database's structure and content. A standard
Question
Which of the following is used to document the system catalog in a database?
Options
- AStandard operating procedure
- BSystem requirements documentation
- CProject plan
- DData dictionary
Explanation
A data dictionary documents the system catalog by defining all data elements within a database - including field names, data types, relationships, constraints, and meanings - making it the authoritative reference for understanding the database's structure and content. A standard operating procedure (A) describes step-by-step processes for tasks, not data structure. System requirements documentation (B) captures what a system must do functionally, not how its data is organized. A project plan (C) tracks timelines and milestones for project execution, which is entirely unrelated to documenting data.
Memory tip: Think of a data dictionary like an actual dictionary - just as a dictionary defines words, a data dictionary defines your data fields and their rules.
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