UiPath Automation Developer Professional v1 — Question 82

A developer examines a workflow in which filenames are stored within a collection. The collection is initialized with a single filename. When adding a new filename to the collection, which collection variable type will cause an error?

Answer options

• A. System.Collections.Generic.Dictionary
• B. System.Collections.Generic.List
• C. System.Array
• D. System.Data.DataTable

Correct answer: C

Explanation

The correct answer is C, System.Array, because arrays in .NET have a fixed size once initialized, preventing the addition of new elements. In contrast, System.Collections.Generic.Dictionary, System.Collections.Generic.List, and System.Data.DataTable all allow for dynamic resizing or addition of elements.