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Prep plan
Updated weekly · Last refresh Aug 30

Palo Alto Networks Software Engineer Interview Questions

The questions to prepare for a Palo Alto Networks Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 11 questions · ~108 min
LRU Cache for Fast RetrievalMedium
Practice
Recently asked

Implement an LRU cache using a hash map and doubly linked list to support O(1) get and put operations.

Hash TablesSearchingSortingPalo Alto Networks
Fibonacci in Your Favorite LanguageEasy
Practice

Generate the first n Fibonacci numbers using an iterative constant-space approach.

Palo Alto Networks
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2
Pipelines4 questions · ~39 min
Security Log Stream PipelineHard
Recently asked

Tests system design for scalable real-time ingestion, processing, and analysis of high-volume security telemetry.

Stream ProcessingETLOrchestrationPalo Alto Networks
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3
System Design11 questions · ~108 min
Secure User Code ExecutionHard
Recently asked

Tests secure sandboxing, isolation, and performance considerations for executing untrusted code.

InfrastructureModel ServingPalo Alto Networks
Design a RESTful APIHard

Tests API design fundamentals including contracts, scalability, and maintainability for KPMG systems.

api designsystem architecturePalo Alto Networks
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4
Execution7 questions · ~68 min
Present a Past ArchitectureMedium

Tests your ability to communicate architecture decisions and trade-offs clearly.

presentationarchitecturePalo Alto Networks
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5
Security & Infrastructure11 questions · ~108 min
Explain OSI Model LayersMedium

Tests understanding of the OSI model and ability to map concepts to real networking examples.

NetworkingPalo Alto Networks
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6
SQL & Data Manipulation3 questions + 3 drills · ~59 min
7
More topics3 questions · ~29 min
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.