Tencent Backend Engineer Interview Questions

The questions to prepare for a Tencent Backend Engineer interview. Questions from real interview reports rank first. Updated daily.

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CodingStart here. 5 questions · ~51 min

Implement an LRU cache with O(1) get and put operations using a hash map and doubly linked list.

Counting Words ProblemEasy

Practice

Count whitespace-separated words with a hash map while preserving case and punctuation.

Codingstring manipulationData Structures

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Stable Sorting: QuicksortMedium

Evaluates correctness reasoning about algorithm properties.

stability

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Security & Infrastructure5 questions · ~51 min

Evaluates ability to reason about scalable network I/O mechanisms.

Real-Time OS vs Laptop OSMedium

Tests understanding of real-time scheduling and OS behavior relevant to backend systems.

Operating Systemsreal-time systems

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HTTP Status CodesEasy

Assesses knowledge of HTTP semantics and how to interpret common response codes.

status codeshttp

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Behavioral & Leadership6 questions · ~61 min

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