Two clients change the same record at once
ScenarioHard
Two support agents edit the same customer at the same moment. Both send PUT /customers/7. How do you test that no update is silently lost?
This question is part of Pro+
Pro+ opens every question in Interview Prep and the mock interview. Every article and the first 2 questions of each topic stay free. Hands-on Selenium and API tasks follow their course lesson's own lock.