Tech Interview Quizzes
Quick multiple-choice checks of the concepts that interviews at FAANG (Facebook/Meta, Apple, Amazon, Netflix, Google) and AI-first companies like Anthropic, OpenAI, and Nvidia are built on. Instant feedback, a clear explanation for every answer.
Daily Quiz
5 fresh questions every day
Same 5 for everyone, drawn from all topics — resets at midnight UTC.
Pick a topic
System Design Fundamentals
Test yourself with 24 system design interview quiz questions on caching, sharding, CAP theorem, load balancing, and consistency — each with a clear explanation.
LLM & AI Engineering
24 quiz questions on LLM inference, KV caching, embeddings, RAG, quantization, and sampling — the AI engineering concepts asked at Anthropic, OpenAI, and Nvidia interviews.
Data Structures & Algorithms
24 multiple-choice questions on Big-O, hash maps, heaps, BFS/DFS, binary search, and dynamic programming — quick prep for the coding interview screen.
Databases & Caching
24 quiz questions on indexes, transactions, isolation levels, cache eviction, Redis, and cache stampedes — the storage questions interviews keep returning to.
Quiz FAQs
Are the TierOnePrep interview quizzes free?
Yes. Every quiz on TierOnePrep is completely free, including all answers and explanations — no account required. The Pro subscription applies only to the full question bank's model answers.
What topics do the quizzes cover?
Four topics: System Design Fundamentals (CAP theorem, caching, sharding, load balancing), LLM & AI Engineering (KV cache, RAG, quantization, sampling), Data Structures & Algorithms (Big-O, heaps, BFS/DFS, dynamic programming), and Databases & Caching (indexes, isolation levels, cache stampedes). Each quiz has 24 multiple-choice questions with explanations.
How does the Daily Quiz work?
The Daily Quiz is 5 questions drawn from all topics, the same for every visitor, rotating at midnight UTC. It cycles through the full question pool before repeating, so a quick daily habit covers everything over time.
Why are some topic quiz questions locked?
Each topic unlocks 4 of its 24 questions per day, rotating at midnight UTC, so a topic takes six daily visits to complete. Spacing practice across days beats cramming for retention, and every day's set awards fresh XP.
Are these the same questions asked in real interviews?
Quizzes test the concepts that interviews at FAANG (Facebook/Meta, Apple, Amazon, Netflix, Google) and AI-first companies like Anthropic, OpenAI, and Nvidia are built on — the vocabulary and trade-offs interviewers probe. For full interview-style practice, the TierOnePrep question bank has 100+ interactive system design walkthroughs and coding problems.