Dataford
Top 22
Prep plan
Updated weekly · Last refresh Aug 30

ZoomInfo Technologies Data Analyst Interview Questions

The questions to prepare for a ZoomInfo Technologies Data Analyst interview. Questions from real interview reports rank first. Updated weekly.

22questions
~3htotal time
Track your progressSign up free to work through all 22 questions and resume where you left off.
Start practicing free →
1
SQL & Data ManipulationStart here. 4 questions + 1 drill · ~46 min
Second Highest Trader SalaryEasy
Practice

Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.

SubqueriesRankingSortingZoomInfo Technologies
SQL for Activity and User MetricsHard
Practice

Aggregate ZoomInfo Engage activities by type and date, include zero-activity combinations, and calculate day-over-day changes.

queriessqlZoomInfo Technologies
Customer Orders: LEFT vs INNER JOINEasy

Explain how INNER JOIN and LEFT JOIN differ, and when to use each for matched-only versus all-left-row analysis.

JoinsData WranglingGroup ByZoomInfo Technologies
Monthly Active User Growth by PlatformMedium
Practice
Practice drill

Use joins, CTEs, and monthly aggregation to compute Google Maps active users and month-over-month growth.

Window FunctionsDate FunctionsAggregationsEngineGoogleZoomInfo Technologies
More SQL & Data Manipulation questions with a free account
2
Pipelines4 questions · ~36 min
Parse Irregular Files Into PandasMedium

Tests your ability to handle messy input data and transform it into analysis-ready structures in Pandas.

Data QualitytransformationsData WranglingZoomInfo Technologies
Python Pipeline Logging and ExceptionsMedium

Tests production readiness for data pipelines, including observability and failure handling.

Data QualityobservabilityAutomationZoomInfo Technologies
Automate API Extraction to CSVMedium

Tests your ability to build reliable Python data extraction and transformation pipelines.

data integrationAPIsAutomationZoomInfo Technologies
More Pipelines questions with a free account
3
Behavioral & Leadership12 questions · ~109 min
More Behavioral & Leadership questions with a free account
4
More topics2 questions · ~18 min
Analyze User Engagement Drop After Feature ReleaseMedium

Assess the 15% drop in user engagement after a new app feature release and propose metric decomposition strategies.

ZoomInfo Technologies
A/B Test for ZoomInfo SearchHard

Tests experimental design, metrics selection, and statistical thinking for product changes at ZoomInfo.

experiment designGuardrail Metricsprimary metricsZoomInfo Technologies

Sign up to see every question

Create a free account to unlock this list and practice real interview questions.

Get my prep plan
The finish line: interview-readyComplete all 22 questions plus 1 hands-on drill to finish this plan.