Which of the following is a valid step to hide a column from a security role in Tabular Editor?

• A. Open the model in Tabular Editor; Select the column; Set Hidden to True
• B. Open the model in Power BI Desktop; Delete the column
• C. Open the model in Tabular Editor; Set Object Level Security to Default
• D. Open the model in Tabular Editor; Create a new role

Answer: (A)

Hiding a column from clients is done by marking it as Hidden. In Tabular Editor, this is as simple as selecting the column and setting Hidden to True. When a column is hidden, it won’t appear in any client experiences (Power BI, Excel, etc.), so it won’t be visible to anyone who accesses the model through security roles. This makes it a straightforward and supported way to reduce the data surface exposed to users.

If you need more granular control for specific roles, you would use object-level security to restrict access on that column for particular roles, but the Hidden flag provides a quick, broad suppression of visibility.

Deleting the column would remove it from the model entirely, which is usually undesirable; setting object-level security to Default doesn’t hide it; and simply creating a new role doesn’t affect visibility of the column.