Company

HCL

Real interview questions with expert answers, plain-English explanations, and practical examples. (4 questions)

HCL Data Engineer Message Queues

A critical HCL data pipeline relies on message queues for asynchronous processing. How do message queues ensure data durability and order preservation, and what mechanisms are involved?

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HCL DevOps Engineer Containers & Kubernetes

A critical pod in your kubernetes cluster is continuously crashing. How would a devops engineer diagnose and resolve the issue?

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HCL Backend Developer System Design

How would you design a real-time notification system, considering scalability and message delivery guarantees?

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HCL QA Engineer Testing

What causes flaky tests, and how do you systematically fix them instead of just re-running CI?

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