IBM iX Interview Questions
The questions to prepare for IBM iX interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Calculate a three-day moving average of active-client revenue using aggregation and SQL window functions.
Explain how to profile, clean, and standardize missing or dirty data before analysis.
Approach a mixed interview round while summarizing completed activity with a CTE, aggregation, and left join.
WiseJoin two tables and derive palindrome, reversed-substring, and character-frequency results with PostgreSQL.
HsbcDifferentiate between Type I and Type II errors in hypothesis testing with a practical example.
Identify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
Define a success metric for a new feature that captures real user value, not just raw usage.
Explains how to classify frontend state and choose React state-management tools without creating unnecessary global state.
Explain how you would prioritize QA work under a fixed deadline when full regression coverage is not possible.
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