HCL Interview Questions
The questions to prepare for HCL interviews, across all roles. Questions from real interview reports rank first. Updated weekly.
Find the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
HCLAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
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Benjamin MooreUse Floyd's tortoise-and-hare algorithm to determine whether a linked list contains a cycle in O(n) time and O(1) space.
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Discuss preferred configuration management tools for pipeline environments, with focus on drift control, versioning, and automation.
HCLExplain your approach to rolling updates, canary releases, and zero-downtime deployments with clear rollback criteria and stakeholder alignment.
HCLApproach for deciding when to pay down technical debt as a product grows.
HCLInvestigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
HCLIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
HCLDefine a success metric for a new feature that captures real user value, not just raw usage.
HCL