CompTIA Data+ DA0-002 (V2) Practice Question

The correct answer is a snapshot. A snapshot is a data versioning technique that captures the state of a dataset at a specific point in time, creating a static, read-only copy. This is essential for financial reporting and auditing, where the data must be frozen at a precise moment (e.g., the end of a quarter) to ensure consistency, accuracy, and compliance.

• Real-time is incorrect because it involves continuously updated data. This would violate the requirement for a static, unchanging dataset for the quarterly report.
• Ad hoc describes the frequency of a report (i.e., created once for a specific, non-recurring need), not a data versioning technique. While this report might be considered ad hoc, this term doesn't describe how the data itself is preserved.
• Data filtering is a technique used to select specific data from a source (e.g., by date range), but it does not inherently create a static copy. Filtering a live database would still allow the underlying data to change, which is not suitable for this scenario.