Top 50
Prep plan
Updated weekly · Last refresh Oct 17
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Druva Software Engineer Interview Questions

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

50questions
~11htotal time
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1
CodingStart here. 14 questions · ~182 min
Sum Left Leaves minus Sum Right LeavesMedium
Practice

Compute the sum of leaves in the root's left subtree minus the sum of leaves in its right subtree using DFS.

binary searchdfsAlgorithmsDDruva
Count X in Sorted ArrayMedium
Practice

Count occurrences of X in a sorted array with duplicates using two binary searches in O(log n) time.

binary searchArraysAlgorithmsDDruva
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2
System Design13 questions · ~169 min
Design TinyURLHard

Design TinyURL at a high level, covering short-link creation, redirects, storage, scalability, and reliability.

latencydistributed systemsdesignDDruva
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3
Security & Infrastructure9 questions · ~117 min
DoS Prevention BasicsHard

Explain DoS attack mechanics and design layered network, application, and operational mitigations with measurable detection.

network securitydnsmitigationDDruva
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4
Pipelines3 questions · ~39 min
Machine Learning for Storage UsageHard

Evaluates ML-informed strategies to reduce storage costs while maintaining data usability.

Machine LearningDDruva
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5
Technical Fundamentals4 questions · ~52 min
TCP vs UDPMedium

Tests your ability to reason about transport-layer tradeoffs for real systems.

NetworkingprotocolsDDruva
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6
Behavioral & Leadership4 questions · ~52 min
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7
More topics3 questions · ~39 min
Paginated API with ThreadsMedium
Practice

Return ordered API items only from runs whose expected pages were fetched successfully.

Joinsdata validationdata extractionDDruva
Describe a Time You Designed System ArchitectureMedium

Evaluates system design thinking and ability to translate requirements into architecture.

team dynamicsDDruva
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.