Top 30
Prep plan
Updated weekly · Last refresh Aug 30

DTCC QA Engineer Interview Questions

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

30questions
~4htotal time
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1
ExecutionStart here. 10 questions · ~80 min
Prioritize Testing Under Time PressureEasy

Explain how you would prioritize test cases under a tight release timeline while balancing risk, scope, and release confidence.

Trade-offsRisk AssessmentScope ManagementDTCC
Managing Selenium Locators in Dynamic UIMedium

Tests your ability to build resilient UI tests and reduce flakiness in changing front ends.

seleniumDTCC
Handling a Critical Production BugEasy

Describe how you handled discovery, escalation, triage, and containment of a critical bug under release pressure.

Trade-offsSuccess CriteriaRisk AssessmentDTCC
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2
SQL & Data Manipulation4 questions + 3 drills · ~62 min
SQL for Database ValidationEasy

Explain how SQL is used to validate database quality through row counts, null checks, duplicates, and aggregate comparisons.

JoinsData WranglingAggregationsDTCC
Data Integrity in Migration ValidationMedium

Explain how to preserve data integrity during a large database migration using reconciliation queries, joins, CTEs, and transaction controls.

data migrationdatabasesdata integrityDTCC
Validating Backend Data With SQLMedium

Tests your ability to write SQL validations that confirm correctness of backend data for QA.

sqldata integrityvalidationDTCC
SQL Queries for RankingMedium
Practice
Practice drill

Rank active HSBC employees by division and return every employee tied for the highest or second-highest salary.

javasqlHsbc
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
Monthly Campaign Performance SummaryEasy
Practice
Practice drill

Aggregate January 2024 campaign data by channel using GROUP BY, filtering, and ordering by total clicks.

JoinsData WranglingAggregationsDNVEversanaDiscord
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3
Coding6 questions · ~48 min
Debugging Code and PatternsHard

Evaluates problem-solving strategy and debugging skills under uncertainty.

MathDebuggingDTCC
XPath Selectors in SeleniumMedium

Evaluates your understanding of XPath selector behavior and maintainability in UI automation.

seleniumDTCC
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4
Behavioral & Leadership10 questions · ~80 min
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The finish line: interview-readyComplete all 30 questions plus 3 hands-on drills to finish this plan.