1. If there is no requirement document, how will you test?
I will understand the application by exploring it, study similar features, talk to BA/PO, and design test scenarios based on user workflows.
2. Developer says “Works on my machine”, what will you do?
I will provide exact reproduction steps, screenshots, logs, and environment details. If needed, I will demonstrate the issue live.
3. How will you test a feature if only 1 hour is given?
I will test only critical user flows, high-risk areas, and frequently used functionalities.
4. How do you know your testing is sufficient?
When major scenarios are covered, no critical bugs are open, and exit criteria are met.
5. What if you don’t find any bugs?
I re-check edge cases, negative scenarios, boundary values, and usability issues. If still no bugs, I report test coverage clearly.
6. Can a product be released with bugs?
Yes, if bugs are low severity and business approves. Critical bugs should never go to production.
7. How do you test when UI is not ready?
I test backend using APIs, database, or mock data.
8. How do you handle conflicting priorities from manager and client?
I focus on business-critical features first and communicate risk clearly.
9. How will you test a field that accepts date?
I test valid date, invalid date, future date, past date, leap year, and format.
10. What is the difference between “bug” and “defect”?
Bug is coding mistake. Defect is deviation from requirement.
11. What is more important: documentation or testing?
Both are important, but quality product is priority.
12. How do you test error messages?
I verify correctness, clarity, spelling, and whether they guide user properly.
13. What is the most difficult bug you faced?
A bug that appeared only under specific conditions like slow network or heavy load.
14. How will you test logout functionality?
I verify session expiry, back button behavior, and URL access after logout.
15. How will you test search functionality?
I test with valid keywords, invalid input, partial text, special characters, and performance.
16. How do you test multi-browser compatibility?
I test UI, functionality, and responsiveness in Chrome, Edge, Firefox, etc.
17. What is defect leakage?
Defect found in production that was missed in testing.
18. What is defect age?
Time taken from defect detection to closure.
19. How do you test without test data?
I create dummy data or request DB/admin support.
20. Why should we hire you as a tester?
I ensure product quality, reduce business risk, and think like an end user.