BCG Data Engineer Interview Questions
The questions to prepare for a BCG Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Find two indices in a sorted array whose values equal a target using the two-pointer technique in O(n) time.
Use a single dictionary pass to record each character's frequency and earliest index.
Assesses understanding of translating SQL logic into PySpark DataFrame operations.
Tests understanding of relational vs non-relational data models and when to use each.
Evaluates data preprocessing skills for handling missing values in PySpark.
Tests ability to connect core coding fundamentals with SQL and PySpark data manipulation.
Use aggregation and row numbering to return the three most frequent purchasers within each region.
NIOCalculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.
Tavant
Rpmglobal
Two Six TechnologiesTransform comma-separated employee tags, join employees to managers, and aggregate active direct reports by manager and tag.
TredenceEvaluates practical data cleaning and exploratory analysis skills in PySpark.
Tests secure networking design for accessing private AWS data stores.
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