Lead Qa Engineer Interview Questions

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Suppose I have deployed my product to production. For the first 24 hours, everything runs smoothly. After that, users start reporting performance issues — for example, they say the site is slow. When I check the system metrics and dashboards, I notice memory usage is steadily increasing. Clearly, something is wrong, though the exact issue is not well defined. What would be your root cause analysis approach to identify the real problem?
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QA Automation

Interviewed at Nagarro

3.9
Aug 26, 2025

Suppose I have deployed my product to production. For the first 24 hours, everything runs smoothly. After that, users start reporting performance issues — for example, they say the site is slow. When I check the system metrics and dashboards, I notice memory usage is steadily increasing. Clearly, something is wrong, though the exact issue is not well defined. What would be your root cause analysis approach to identify the real problem?

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