Intermediate~2h
Common Pitfalls & Anti-patterns in LLM CoreInterview Readiness Check
The bugs every team hits — hallucinations treated as bugs not features, retry storms, structured-output silent failures, LLMs as if-statements, prompt regression on model upgrade..
hallucinationanti-patternretrymodel upgradeprompt regressionLLM bug
Learning path
Prompt Engineering — OpinionatedLLM Evaluation Fundamentals→Common Pitfalls & Anti-patterns ← you are here→Production Readiness ChecklistPrompt Injection, Jailbreaks & Guardrails
Try a sample question
An LLM confidently states 'The Eiffel Tower was built in 1892' (it was 1889). The model wasn't prompted to guess — it just generated incorrect factual information. This is an example of what failure mode?
A.Temperature drift: high temperature settings caused the model to invent facts
B.Jailbreaking: the model bypassed its safety training to produce false information
C.Context poisoning: incorrect information in the prompt caused the wrong output
D.Hallucination: the model generates plausible-sounding but factually incorrect content from its parametric memory, often with false confidence
Sign up free to take the full check and see the answer with an explanation.
What this module tests
- Conceptual understanding of common pitfalls & anti-patterns fundamentals
- Trade-offs and design decisions in real system scenarios
- hallucination and anti-pattern — applied knowledge
- Interview-style reasoning and explanation quality
Free to start
Take the Common Pitfalls & Anti-patterns check →
10 questions · Dimension scoring · AI coach feedback · Shareable result
Test your knowledge — free →No credit card · Takes 10–15 min
Frequently asked questions
- What does the Common Pitfalls & Anti-patterns check test?
- The check covers the bugs every team hits — hallucinations treated as bugs not features, retry storms, structured-output silent failures, llms as if-statements, prompt regression on model upgrade.. Questions span beginner to advanced difficulty and test both conceptual understanding and practical trade-off reasoning.
- What keywords should I know for Common Pitfalls & Anti-patterns?
- Key concepts include: hallucination, anti-pattern, retry, model upgrade, prompt regression, LLM bug. These frequently appear in llm core interviews at product and infrastructure companies.
- How many questions are in the check?
- Each check has 10 questions — a mix of MCQ and short-answer. You get scored by dimension (e.g., scalability, consistency) so you know exactly where to focus.
- How long does it take to study Common Pitfalls & Anti-patterns?
- Most engineers spend around 2 hours on this module. The check itself takes about 10–15 minutes. You can retake it up to 3 times per day.
- What prerequisite knowledge do I need before Common Pitfalls & Anti-patterns?
- Common Pitfalls & Anti-patterns builds on Prompt Engineering — Opinionated and LLM Evaluation Fundamentals. Complete those first for the best results.
- Is hallucination, anti-pattern, retry covered?
- Yes. The Common Pitfalls & Anti-patterns module covers hallucination, anti-pattern, retry among other key concepts. The check includes questions that reflect real llm core interview patterns.