Principle Interview Questions
The questions to prepare for Principle interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.
PrincipleUse prefix sums and a hash table to find the longest continuous subarray with a given sum in O(n) time.
PrincipleTraverse a binary tree boundary once, avoiding duplicate leaves, and return nodes in anticlockwise order.
PrincipleUse DENSE_RANK and a CTE to find employees earning the third-highest distinct salary in each department.
PrincipleExplain how clustered and non-clustered indexes differ in storage, lookup behavior, and query performance.
PrincipleExplain normalization, why it improves data integrity, and when denormalization is a practical performance tradeoff.
PrincipleExplain core Java concepts and produce an aggregated SQL access summary using joins.
SaviyntReturn cardholders whose 2025 approved transaction total is at least 1000 across multiple transaction records.
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Tests designing robust error handling, categorization, logging, and recovery flows for transaction systems.
PrincipleEvaluates your ability to design and explain a Spring-based application end-to-end.
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