🚨 TCS | SDET / Automation Testing Interview Questions | Experience: 3–6 Years |

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🔹 Round 1 – Coding, Manual Testing & Automation
① Find the first non-repeating character in a String.
② Reverse a String without using built-in methods.
③ Find duplicate elements in an Array.
④ Write test cases for a Login page.
⑤ Write test cases for a Payment Gateway.
⑥ Severity vs Priority?
⑦ Smoke vs Sanity vs Regression Testing?
⑧ Explain STLC and Bug Life Cycle.
⑨ How do you handle dynamic elements?
⑩ Implicit Wait vs Explicit Wait?
⑪ How do you handle alerts, frames and windows?
⑫ How do you upload a file?
⑬ How do you validate REST API status code, headers and body?
⑭ Write an SQL query to find duplicate records.
⑮ How do you validate UI data with Database data?
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🔹 Round 2 – Framework, Project & Scenario-Based

① Explain your Automation Framework architecture.
② Explain your framework folder structure.
③ How have you implemented Page Object Model?
④ How do you manage test data?
⑤ How do you execute tests in parallel?
⑥ How do you handle flaky tests?
⑦ How do you integrate automation with Jenkins?
⑧ Explain your CI/CD pipeline.
⑨ How do you generate Allure/HTML reports?
⑩ Why did you choose Playwright/Selenium?
⑪ A test passes locally but fails in Jenkins. How will you debug it?
⑫ Your automation suite fails after deployment. What steps will you take?
⑬ How do you decide which test cases should be automated?
⑭ Tell me about the most challenging automation problem you solved.
⑮ Explain your current project and your contribution.