Database Fundamentals for Testers — quiz

A QA engineer needs to verify that a 'delete account' button actually removes user data. The dev team says the API returns 200 OK. Why should the tester also check the database directly?

• A 200 OK response guarantees the data is gone
• Querying the database directly proves whether the row was actually deleted, soft-deleted, or still present — independent of what the API claims
• SQL queries are faster than API calls
• API tests cannot return any data