Apex Interview Questions
The questions to prepare for Apex interviews, across all roles. Questions from real interview reports rank first. Updated weekly.
Reverse a singly linked list in-place using iterative pointer manipulation.
ApexFind the second highest distinct salary from a single table using basic PostgreSQL ordering and limiting.
ApexCompute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.
Gain Digital
TCS
Zest AIMerge CRM orders with GA events via an identity map to build a customer-level view using joins, window functions, and monthly rollups.
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Design an API by balancing usability, performance, versioning, and operational risk under real product constraints.
ApexTests product messaging, clarity, and tailoring to buyer priorities.
ApexDesign a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.
ApexDefine a practical engineering performance scorecard that balances delivery speed, quality, reliability, and long-term outcomes.
ApexTests competitive positioning and ability to articulate unique value.
ApexTests your approach to modeling sensor behavior and validating embedded or system integration.
Apex