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Updated weekly · Last refresh Oct 17

Quess IT Staffing QA Engineer Interview Questions

The questions to prepare for a Quess IT Staffing QA Engineer interview. Questions from real interview reports rank first. Updated daily.

26questions
~4htotal time
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1
Technical FundamentalsStart here. 4 questions · ~32 min
Agile, Spike, and RegressionMedium

Tests knowledge of Agile concepts and core API and regression testing practices.

AgileapiQuess IT Staffing
Testing Levels: Smoke vs SanityMedium

Evaluates understanding of testing scope and how you choose the right checks.

Quess IT Staffing
NVMe and NAND Flash Firmware TestingMedium

Tests your ability to design QA for storage technologies and firmware behavior validation.

Quess IT Staffing
Severity vs Priority in PracticeMedium

Tests your ability to classify defects correctly and align with product and delivery impact.

Decision MakingCommunicationQuess IT Staffing
2
Behavioral & Leadership19 questions · ~153 min
Performance Management ToolsMedium

Assesses familiarity with performance testing and monitoring tools used in real projects.

performance managementQuess IT Staffing
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3
More topics3 questions · ~24 min
Tuple vs ListEasy

Tests basic Python data structure knowledge relevant to data engineering.

Data StructurespythonQuess IT Staffing
Normalization and Verification QueriesMedium

Tests your understanding of schema design and how it affects test query correctness.

normalizationsqldata integrityQuess IT Staffing
SQL Joins for Test DataMedium

Tests SQL join proficiency for correlating test execution and defect data.

Joinssqldata validationQuess IT Staffing

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Second Highest Without AggregatesHard
Practice
Practice drill

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

SubqueriesRankingSelf-JoinsCredit GenieDevoteamCisco Restaurant + Bar
SQL for Duplicate Patient RecordsMedium
Practice
Practice drill

Identify matching patient records across two clinical trial databases using normalized demographic fields.

Joinssqldata validationVerily
SQL Schema and Data ValidationHard
Practice
Practice drill

Compare source and target account data to flag schema mismatches, missing rows, and value differences.

Joinssqldata validationCharles Schwab
The finish line: interview-readyComplete all 26 questions plus 3 hands-on drills to finish this plan.