Given the following code which defines an SAP HANA database table in SAP S/4HANA Cloud, public edition:

You are a consultant and the client wants you to extend this SAP database table with a new field called "zz_countrycode" on line. Which of the following is the correct response?

What RESTful Application Programming feature is used to ensure the uniqueness of a semantic key?

Which of the following enforce ABAAP Cloud rules? Note: There are 2 correct answers to this question.

Which of the following Core Data Services built-in functions returns a result of type INTT4? Note:
There are 2 correct answers to this question.

What RESTful Application Programming object contains only the fields required for a particular app?