*Round 1 – Core Java, Selenium & Playwright
1. What is the difference between HashMap and ConcurrentHashMap?
2. How do you handle StaleElementReferenceException?
3. What is the difference between Implicit Wait and Explicit Wait? Which do you prefer and why?
4. How does Selenium communicate with browsers?
5. What is the difference between findElement() and findElements()?
6. How does Playwright’s auto-waiting mechanism work?
7. What is the difference between Locator and ElementHandle in Playwright?
8. How do you handle multiple tabs or browser windows?
9. Write a program to find the first non-repeated character in a string.
10. How would you find duplicate elements from a list using Java Streams?
*Round 2 – Framework, API & CI/CD
11. Explain the architecture of your automation framework.
12. Why do you use the Page Object Model? What are its limitations?
13. How do you manage test data and environment-specific configurations?
14. How do you implement parallel execution in Selenium?
15. How does Playwright handle parallel test execution?
16. How do you integrate automation tests with Jenkins or GitHub Actions?
17. How do you perform API validation as part of UI tests?
18. How do you identify and reduce flaky tests?
19. How do you generate and manage automation test reports?
20. How do you support multiple environments in your automation framework?
*Round 3 – Scenario-Based & Debugging
21. A test passes locally but fails in Jenkins. How would you debug it?
22. Dynamic locators keep changing after deployments. What approach would you take?
23. How would you automate OTP-based authentication?
24. An automation suite takes more than two hours to execute. How would you optimize it?
25. An element is visible but not clickable. How would you investigate the issue?
