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HashedIn by Deloitte QA Engineer Interview Questions

The questions to prepare for a HashedIn by Deloitte QA Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 19 questions · ~195 min
Reverse a String in PythonEasy
Practice

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonHashedIn by Deloitte
Implement Queue Using StacksEasy
Practice

Implement a FIFO queue using two stacks with amortized O(1) queue operations.

StackQueueArraysHashedIn by Deloitte
Stack Using QueuesEasy
Practice

Simulate Unity Editor undo-stack operations using only queue behavior and preserve LIFO results.

StackQueueHashedIn by Deloitte
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2
SQL & Data Manipulation5 questions + 2 drills · ~71 min
SQL Duplicate DetectionEasy
Practice

Find duplicate customer profiles by grouping on identifying fields and returning only repeated records.

Group ByHavingAggregationsHashedIn by Deloitte
College ER Diagram DesignMedium

Tests database modeling skills and ability to translate requirements into schema.

JoinsData WranglingCTEsHashedIn by Deloitte
Second Maximum Salary QueryEasy
Practice
Practice drill

Use DENSE_RANK and a LEFT JOIN to find active HashedIn employees earning the second-highest distinct salary.

sql queriesNewgen SoftwareHashedInHashedIn by Deloitte
SQL for Ranked RetrievalMedium
Practice
Practice drill

Find employees earning the second-highest active salary using DENSE_RANK and a department join.

sql queryHashedIn by Deloitte
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3
Execution5 questions · ~51 min
Test Strategy for New FeatureEasy

Explain how you would define, prioritize, and organize test cases for a new feature while aligning on risk and scope.

Risk AssessmentScope ManagementQualityHashedIn by Deloitte
Delayed Critical Software ReleaseMedium

Handle a critical release delay caused by technical debt and limited engineering capacity while balancing delivery pressure and product risk.

release planningtechnical debtresource constraintsHashedIn by Deloitte
Prioritize Tests Using Risk-Based TestingEasy

Explain how you would prioritize test cases by risk when time and coverage are both constrained.

Trade-offsRisk AssessmentScope ManagementHashedIn by Deloitte
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4
Behavioral & Leadership18 questions · ~185 min
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The finish line: interview-readyComplete all 47 questions plus 2 hands-on drills to finish this plan.