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Updated weekly · Last refresh Nov 6

Fortitude Systems Data Analyst Interview Questions

The questions to prepare for a Fortitude Systems Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
Date FunctionsStart here. 1 question · ~12 min
SQL for Last 30 DaysEasy
Practice

Find customer records from the last 30 days with an active, non-empty phone number.

Date Functionsnull handlingData WranglingFortitude Systems
2
Pivot1 question · ~12 min
Deduplicating Large Excel ListsMedium

Tests practical data cleaning skills and step-by-step execution on large contact datasets.

PivotJoinsData WranglingFortitude Systems

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3
Data Wrangling1 question + 1 drill · ~22 min
Handling Missing or Corrupt DataMedium

Tests your approach to data quality, validation, and recovery for critical fields.

Data WranglingCase WhenQualityFortitude Systems
SQL CASE for Customer SegmentsEasy
Practice
Practice drill

Use a CASE expression to assign customer segments based on annual spending, including a category for missing values.

null handlingData ManipulationData WranglingBarclaysAmazon Development Centre
Hands-on SQL practiceWrite and run real queries in the editor. 1 drill · ~10 min
SQL Salary Threshold QueryEasy
Practice
Practice drill

Find Fortitude employees earning at least $10,000, including department details with a LEFT JOIN.

sqlFortitude Systems
The finish line: interview-readyComplete all 3 questions plus 2 hands-on drills to finish this plan.