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Prep plan
Updated weekly · Last refresh Aug 30

Decision Point QA Engineer Interview Questions

The questions to prepare for a Decision Point QA Engineer interview. Questions from real interview reports rank first. Updated weekly.

12questions
~2htotal time
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1
SQL & Data ManipulationStart here. 3 questions + 2 drills · ~52 min
Second Highest Without AggregatesHard
Practice

Find the second highest salary in each department without using aggregate functions.

SubqueriesRankingSelf-JoinsDecision Point
SQL Testing and Query DesignMedium

Assesses your ability to test SQL logic and choose appropriate testing types and test cases.

sqlDecision Point
SQL ExperienceEasy

Tests breadth of SQL experience relevant to extracting and transforming healthcare data.

JoinsAggregationsDecision Point
Second Highest Trader SalaryEasy
Practice
Practice drill

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

SubqueriesRankingSortingeClinicalWorksInformaticaSpectraforce Technologies
Advanced Salary Ranking SQLMedium
Practice
Practice drill

Use CTEs and DENSE_RANK to find employees earning the second highest distinct active salary.

sqlDecision Point
2
Coding3 questions · ~32 min
Palindrome Check With ComplexityEasy
Practice

Check whether a Decision Point QA string is a normalized palindrome using a constant-space two-pointer scan.

time complexityStringsTwo PointersDecision Point
Weighing Coins Minimum StepsMedium

Tests your problem-solving and ability to derive an optimal strategy under constraints.

Basic AlgorithmsMathSearchingDecision Point
Measure Exactly 4 LitersMedium

Tests logical constraint solving and ability to derive a correct step-by-step plan.

MathSearchingGreedyDecision Point

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3
Behavioral & Leadership4 questions · ~42 min
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4
More topics2 questions · ~21 min
Decide What to AutomateEasy

Explain how you decide which tests to automate versus keep manual, balancing risk, cost, and long-term maintenance.

Trade-offsRisk AssessmentScope ManagementDecision Point
Real-Time Dashboard Test SuiteMedium

Tests your approach to validating real-time UI behavior, data correctness, and reliability in analytics dashboards.

test strategydashboardingDecision Point
The finish line: interview-readyComplete all 12 questions plus 2 hands-on drills to finish this plan.