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Updated weekly · Last refresh Oct 9

United Airlines QA Engineer Interview Questions

The questions to prepare for a United Airlines QA Engineer interview. Questions from real interview reports rank first. Updated daily.

16questions
~3htotal time
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1
CodingStart here. 10 questions · ~96 min
Inheritance in Object-Oriented ProgrammingEasy

Explain inheritance in OOP, how subclasses reuse and extend parent behavior, and when inheritance is appropriate.

RecursionTreesUnited Airlines
Explain Solution Time ComplexityEasy

Explain how to analyze an algorithm’s time and space complexity and justify the result from the code structure.

Hash TablesSearchingSortingUnited Airlines
Stack vs Queue DifferencesEasy

Compare stack and queue behavior, access order, operations, and common use cases in linear data structures.

StackQueueArraysUnited Airlines
Map Data StructuresMedium

Evaluates your understanding of map data structures and how you apply them to practical coding tasks.

Data StructuresUnited Airlines
Coding: Stack And QueueEasy
Practice

Implement a constant-time minimum stack and an amortized constant-time queue using two stacks.

StackQueueleetcodeUnited Airlines
Time Complexity of RecursionMedium

Tests your algorithm analysis skills for predicting performance under test conditions.

Recursiontime complexityUnited Airlines
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2
Behavioral & Leadership6 questions · ~57 min
Prioritizing QA Under Release PressureMedium

Tests prioritization under pressure in QA, especially risk-based test selection, scope trade-offs, and ownership of release outcomes.

release planningPrioritizationresource constraintsUnited Airlines
Choosing Manual vs AutomationEasy

Tests how you prioritize quality work, balance manual and automated testing, and make practical QA tradeoffs under delivery pressure.

CommunicationLeadershipUnited Airlines
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The finish line: interview-readyComplete all 16 questions to finish this plan.