Easy-level Cardano interview questions covering blockchain basics, Plutus, and development. Q1: What is Cardano and how does it work? Answer: Cardano is a proof-of-stake blockchain platform. Key Features: Ouroboros: Proof-of-Stake consensus Plutus: Smart contract language Formal Verification: Mathematically verified …

Hard-level Cardano interview questions covering advanced optimization and formal verification. Q1: How do you formally verify Plutus contracts? Answer: Formal Verification: Use Agda/Coq for proofs Prove contract properties Ensure correctness Mathematical guarantees Q2: How do you optimize for Cardano's execution model? …

Medium-level Cardano interview questions covering advanced Plutus development and optimization. Q1: How do you optimize Plutus contract execution costs? Answer: Optimization: Minimize on-chain code Use off-chain code when possible Optimize datum/redeemer size Batch operations Q2: How do you implement complex state …

Ouroboros consensus algorithm interview questions covering Cardano's Proof-of-Stake consensus mechanism. Q1: How does Ouroboros (Cardano) consensus work? Answer: Ouroboros is Cardano's Proof-of-Stake consensus algorithm. Sequence Diagram: Overall Flow Diagram: Individual Node Decision Diagram: Ouroboros Phases:

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Core principles, consensus mechanisms, and key innovations of major blockchain platforms. Bitcoin (BTC) Core Principles Digital gold: Store of value, not programmable Decentralization: ~15,000 full nodes worldwide Security: Most secure blockchain (highest hash rate) Simplicity: Intentionally limited functionality …