Browse questions
Every question in the bank, grouped by topic.
Basics13 questions
- What is cryptocurrency?
- How is crypto different from regular money?
- What is a blockchain?
- Does “crypto” mean cryptocurrency?
- What’s the difference between a coin and a token?
- What is an altcoin?
- What is a stablecoin, and is it always worth $1?
- Why was cryptocurrency invented?
- What is the Bitcoin halving?
- Does crypto have intrinsic value?
- Is Bitcoin a bubble about to go to zero?
- Is crypto mainly used by criminals?
- How are Bitcoin and Ethereum different?
People2 questions
Custody10 questions
- What’s a seed phrase?
- Does a wallet actually hold my coins?
- What’s the difference between a hot wallet and a cold wallet?
- Custodial vs non-custodial: what’s the difference?
- If I lose my wallet, do I lose my coins?
- Is cold storage 100% safe?Intermediate
- What is multi-sig?Intermediate
- What does “not your keys, not your coins” mean?
- What happens if I send crypto on the wrong network?
- Why do I need ETH to send USDT?Intermediate
Security11 questions
- Will a real company ever ask for my seed phrase?
- Is a “send 1 BTC, get 2 back” giveaway real?
- Are guaranteed returns in crypto real?
- Is it safe to connect my wallet to claim a free airdrop?
- How do I spot a fake customer-support account?
- What is a rug pull?
- What is address poisoning?Intermediate
- What is a SIM swap, and why is SMS 2FA risky?
- What is a token approval, and how do I revoke one?Intermediate
- Are blockchains unhackable?
- Can a video call be faked?
Markets8 questions
Technology13 questions
- Proof of work vs proof of stake: what’s the difference?Intermediate
- What is crypto mining?
- What is a hash?
- What are private keys, public keys and addresses?
- What are the mempool and confirmations?Intermediate
- What’s the difference between UTXO and the account model?Advanced
- Why do transaction fees change?Intermediate
- What is a Layer 2 or a rollup?Intermediate
- What is the Lightning Network?Intermediate
- What’s the difference between a soft fork and a hard fork?Intermediate
- What was the Ethereum Merge?Intermediate
- What is a bridge, and why are bridges hacked so often?Intermediate
- What is a zero-knowledge proof?Advanced
DeFi11 questions
- What is a smart contract? Is it a legal contract?
- What is DeFi, and is it risk-free?Intermediate
- How does an automated market maker (AMM) work?Intermediate
- Where does DeFi yield come from?Intermediate
- What is impermanent loss?Advanced
- What is a reentrancy attack?Advanced
- What is a flash loan attack?Advanced
- What are MEV and sandwich attacks?Advanced
- What is a DAO?Intermediate
- What is an NFT?
- What is a blockchain oracle?Intermediate
Forensics5 questions
Regulation8 questions
History5 questions
Society5 questions