iOPEX Technologies Interview Questions
The questions to prepare for iOPEX Technologies interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Compute each user's seven-day activity average and compare it with the corresponding rolling average from the prior week.
Compare TCP and UDP reliability, ordering, connection setup, and appropriate use cases.
Identify major online experimentation pitfalls and explain practical mitigations for SRM, network effects, peeking, and novelty.
Diagnose a sudden 20% KPI decline by validating measurement, decomposing drivers, and separating real behavior changes from data issues.
Define a meaningful engagement metric for a retail analytics mobile application and explain how to validate it.
Explain how to establish statistical significance in A/B tests using hypotheses, power, confidence intervals, and safeguards against false positives.
Explain the Transformer architecture, its core components, and why it became the standard for sequence modeling.
Explain all seven OSI layers, map protocols and devices to each, and relate the model to packet flow and security controls.
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Calculate monthly cohort retention using date-based cohorts, aggregation, and window functions.
AAA Life InsuranceApproach a mixed interview round while summarizing completed activity with a CTE, aggregation, and left join.
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