Oracle Cloud Infrastructure Developer 2020 Associate — Question 13

What happens when you select the Key option for a data source attribute?

Answer options

• A. Transactions with the same key attributes cannot be loaded.
• B. The attribute is hidden from users.
• C. Transactions are sorted by the attribute.
• D. Values are required for the attribute.

Correct answer: D

Explanation

Choosing the Key option indicates that values for the attribute are mandatory, ensuring data integrity. Options A, B, and C do not accurately reflect the function of the Key attribute, as they relate to transaction loading limitations, visibility, and sorting rather than value requirements.