Crypto Training
Test Yourself
Pick a topic. You will get one question at a time, full answer explanations, and a running score for the current attempt.
security
Security
Exploit classes, threat models, signatures, reentrancy, and hardening choices.
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foundry
Foundry
Cheatcodes, fuzzing, invariants, fork tests, and deployment/testing workflows.
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defi
DeFi
AMM mechanics, liquidations, oracle risk, vault math, and protocol economics.
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evm
EVM
Storage/memory model, low-level call semantics, gas behavior, and opcode realities.
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