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Interview question tracker

Confluent SDE 1

The 9 highest-frequency questions from all time. Finish the strongest signals first.

Latest source check: 12 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

One question at a time.

Top questions 9

Done	Question	LeetCode
Mark Valid Sudoku completed	Valid Sudoku	Solve
Mark Sudoku Solver completed	Sudoku Solver	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark Time Based Key-Value Store completed	Time Based Key-Value Store	Solve
Mark Minimum Time to Eat All Grains completed	Minimum Time to Eat All Grains	Solve
Mark Design Authentication Manager completed	Design Authentication Manager	Solve
Mark Combination Sum completed	Combination Sum	Solve
Mark Cache With Time Limit completed	Cache With Time Limit	Solve
Mark Debounce completed	Debounce	Solve