What are two validation tests that an administrator can perform before deploying a database?

• A. Performance testing, Stress testing
• B. Negative testing, Referential and integrity validation
• C. Usability testing, Load testing
• D. Unit testing, Acceptance testing

Answer: (B)

The correct answer is focused on two crucial aspects of ensuring data integrity and correctness before a database is deployed. Negative testing involves testing the database with invalid data inputs or scenarios to confirm that the system behaves as expected, specifically that it can handle errors gracefully. This type of testing helps identify potential issues that could arise when the database is subjected to unexpected or incorrect user inputs.

Referential and integrity validation focuses on checking relationships between data elements to ensure they maintain their intended linkages and constraints. This is essential for databases that use foreign keys and other relational constraints to maintain data consistency. By performing these validations, the administrator can confirm that the database structure supports the intended data model and enforces data integrity rules effectively.

In contrast, while other options might include relevant testing types, they do not directly address the verification of data integrity and validity critical in a database context prior to deployment. Performance testing and stress testing (found in the first option) focus on how the database handles load and performance under stress, which is important but not as pivotal in ensuring data validity at launch. Usability and load testing (the third option) concern user experience and system capacity rather than data correctness. Unit and acceptance testing (the fourth option) primarily pertain to programming components rather than specifically