AVEVA Historian Server Practice Exam 2025 - Free AVEVA Historian Practice Questions and Study Guide

In a well-structured database or data model, specific columns are typically designated for particular types of information. The concept of a "revision timestamp" is essential in data management as it helps track when data entries are modified.

The correct answer indicates that none of the options provided include a specific column that indicates when the data was revised. This suggests that the system may not offer a dedicated field for revision timestamps, which could imply that updates are tracked differently or that this aspect might be managed outside standard columns.

In many data environments, timestamps such as “Update Time” or “Data Last Changed” would typically provide insight into when data was last modified or updated, yet they may not explicitly denote a revision timestamp. Therefore, lacking a specific column devoted to revisions can lead to ambiguity in tracking the chronological changes in the data.

Understanding these nuances is critical in data management contexts, particularly for maintaining the integrity and accuracy of historical records and for facilitating effective audits or reviews of data changes.