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OCLC Interview Questions

The questions to prepare for OCLC interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 6 questions · ~52 min
Palindrome Function ImplementationEasy
Practice

Determine whether a string reads the same forward and backward using a two-pointer scan.

RecursionStringsTwo PointersOCLC
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2
Product Sense6 questions · ~52 min
Approach a User Research ProjectEasy

A structured approach to planning and running a user research project that identifies user needs and drives product decisions.

User ResearchUser NeedsPain PointsOCLC
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3
Execution7 questions · ~61 min
Handle a Difficult Team MemberMedium

Explain how you would handle a difficult team member while protecting delivery, relationships, and clarity across stakeholders.

Trade-offsRisk AssessmentDependenciesOCLC
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4
Pipelines5 questions · ~44 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityOCLC
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5
Metrics6 questions · ~52 min
Using Metrics to Drive DecisionsEasy

Explain how you used a KPI and supporting metrics to diagnose a product issue and make a concrete product decision.

Funnel AnalysisKPIsLeading IndicatorsOCLC
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6
Strategy6 questions · ~52 min
Develop a New Market GTM StrategyEasy

Approach for building a go-to-market strategy for a new market or solution.

Competitive AnalysisGo-to-MarketGrowth StrategyOCLC
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7
More topics14 questions · ~122 min
Analyzing Large Datasets with SQLEasy

Explain practical SQL methods for analyzing large datasets, including filtering, aggregation, sampling, and performance-aware query design.

JoinsData WranglingAggregationsOCLC
Microservices and AdvantagesMedium

Tests distributed architecture understanding and when microservices add value.

architecturemicroservicesOCLC
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Handle Missing Financial Input ValuesMedium
Practice
Practice drill

Use joins, CTEs, and CASE logic to flag and fill missing financial fields for Qlik planning records.

Data WranglingETLQualityQlik
Clean Event Statuses for AnalysisEasy
Practice
Practice drill

Clean raw status text with TRIM and LOWER, filter unusable rows, and count usable events by cleaned status.

Data WranglingETLQualityDatabricks
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.