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Sunking Interview Questions

The questions to prepare for Sunking interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
ExecutionStart here. 6 questions · ~48 min
Dependency Injection BasicsMedium

Tests your understanding of dependency injection mechanisms and the practical benefits for maintainable software.

javadesign patternsdependency injectionSSunking
Choosing Interface Over AbstractMedium

Tests your ability to make sound design decisions based on extensibility, contracts, and inheritance needs.

javaSSunking
Break Circular Dependencies with InterfacesHard

Tests your ability to apply interface-based design to resolve coupling and dependency graph issues.

javaSSunking
Java Memory and PerformanceMedium

Tests your understanding of Java performance tuning and memory management for backend services.

memory managementjavaperformance optimizationSSunking
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2
SQL & Data Manipulation3 questions + 3 drills · ~54 min
3
More topics1 question · ~8 min
Abstract Class vs InterfaceMedium

Evaluates your design judgment for Java abstractions in production backend code.

javaSSunking
The finish line: interview-readyComplete all 10 questions plus 3 hands-on drills to finish this plan.