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MCA Interview Questions

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

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1
System DesignStart here. 4 questions · ~32 min
Data Consistency in Distributed SystemsHard

Tests your understanding of distributed consistency models and correctness strategies.

distributed systemsdata consistencyarchitectureMCA
Trade-offs in Distributed ArchitectureMedium

Tests your ability to choose architectures based on scalability, reliability, and operational constraints.

Trade-offsdistributed systemsMCA
Designing External APIsMedium

Tests your API design judgment around usability, security, versioning, and reliability for clients.

considerationsapi designMCA
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2
More topics6 questions · ~48 min
Optimizing Slow Database QueriesMedium

Tests your ability to diagnose and improve SQL performance under production-like load.

latencydatabase optimizationMCA
Debugging Production Under PressureMedium

Tests incident triage, structured debugging, and communication during time-critical outages.

time managementproduction issuesDebuggingMCA
Network Components for ScaleHard

Evaluates your ability to design network infrastructure for MCA’s scale and environment constraints.

MCA
Identifying Bottlenecks Between SitesMedium

Assesses your approach to diagnosing cross-site performance issues and root causes.

MCA
Refactoring Legacy Code for PerformanceMedium

Tests your technical leadership, refactoring strategy, and measurable performance outcomes.

refactoringperformanceMCA
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
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