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Updated weekly · Last refresh Nov 1

Top 50 llm Interview Questions

The most frequently asked llm questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions
~8htotal time
65companies covered
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1
CodingStart here. 4 questions · ~40 min
LLM and Graph TraversalMedium
Practice
Recently asked

Explain LLMs briefly, then return a deterministic graph traversal using BFS with DFS as an alternative.

dfsbfsllmPinterest
Prevent Prompt Injection in LLM InputsMedium
Practice

Normalize user text and remove lines matching common prompt injection patterns before sending it to an LLM.

clean codePrompt InjectionllmIIntercom
Build an LLM AgentHard
Practice

Implement an LLM agent loop that selects developer tools, records results, and stops when it produces a final response.

CodingapillmPostman
Token-Bucket Rate LimitingHard
Practice

Simulate token-bucket admission decisions for commercial LLM API requests using elapsed-time token replenishment.

api requestsapillmSlalom
2
SQL & Data Manipulation3 questions · ~30 min
Count Matches Per SourceMedium
Practice

Count detected matches for every source linked to one LLM output, including sources with zero matches.

null handlingJoinsllmHHarveyAI
Match Phrases With OverlapsHard
Practice

Find every case-insensitive phrase occurrence in LLM output, including matches that overlap.

Data Manipulationcomplex queriesdata validationHHarveyAI
LLM Ticket Classification and RoutingMedium
Practice

Compare LLM ticket-routing accuracy by model version and predicted queue using confidence filtering and joined support data.

missing valuesClassificationdata validationOpenAI

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3
System Design7 questions · ~71 min
LLM Setup and ArchitectureHard
Recently asked

Design an end-to-end LLM system covering model hosting, retrieval, serving, evaluation, and operational failure handling.

inference latencyml inferencellmAAstemo AmericasHockeyStackJJDA TSG
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4
Machine Learning7 questions · ~71 min
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5
Generative AI & LLMs23 questions · ~232 min
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6
NLP4 questions · ~40 min
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7
More topics2 questions · ~20 min
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