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Cactus Communications Software Engineer Interview Questions

The questions to prepare for a Cactus Communications Software Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
Technical FundamentalsStart here. 5 questions · ~41 min
Explain dependency injection in your preferred frameworkMedium

Assesses understanding of DI concepts and practical usage.

software designdependency injectionCCactus Communications
Discuss practical uses of traits and polymorphismMedium

Evaluates understanding of object-oriented design concepts and language features.

object-oriented programmingCCactus Communications
Explain SSO and its workflowMedium

Assesses knowledge of SSO architectures and implementation considerations.

authenticationSecurityCCactus Communications
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2
System Design3 questions · ~25 min
Spark cluster configuration for a given scenarioMedium

Evaluates approach to configuring Spark clusters for a concrete use case.

CCactus Communications
How would you manage sessions and authentication across serversMedium

Tests approach to scalable session management and auth strategies.

scalabilityCCactus Communications
Design a high-traffic e-commerce flash sale systemHard

Tests system design skills for high-load, distributed services and object handling nuances.

system designscalabilityCCactus Communications

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3
More topics3 questions · ~25 min
Abstract Class vs InterfaceMedium

Tests knowledge of Java type system and when to use each abstraction.

javaCCactus Communications
What do you think our company do?Easy

Discovers candidate’s understanding of Cactus Communications and its services.

company knowledgeCCactus Communications
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