Ontra Interview Questions
The questions to prepare for Ontra interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Reverse a singly linked list in-place using iterative pointer manipulation.
OntraUse joins, conditional aggregation, and date filtering to measure Carvana location performance over the last 30 days.
OntraCompute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.
Gain Digital
TCS
Zest AIMerge CRM orders with GA events via an identity map to build a customer-level view using joins, window functions, and monthly rollups.
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Explain how to distinguish early directional metrics from outcome metrics, using a clear KPI framework tied to product decisions.
OntraApproach for building a go-to-market strategy for a new market or solution.
OntraExplain how you prioritize competing work under time pressure while making trade-offs and keeping stakeholders aligned.
OntraExplain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.
OntraFramework for uncovering user needs, pain points, and the core problem before moving into product or UX solutions.
OntraExplain what a p-value means in hypothesis testing and how it relates to statistical significance.
Ontra