Smart Contracts MCQs

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1. : What is a smart contract?





2. : Who first proposed the idea of smart contracts?





3. : On which blockchain were smart contracts first widely used?





4. : Which programming language is commonly used for Ethereum smart contracts?





5. : What is the main advantage of smart contracts?





6. : What happens once a smart contract is deployed on Ethereum?





7. : Which of the following is a disadvantage of smart contracts?





8. : Which Ethereum upgrade introduced improved smart contract efficiency with gas fees?





9. : Smart contracts execute on which type of network?





10. : Which component of Ethereum directly runs smart contracts?





11. : Which industry benefits from smart contracts for supply chain tracking?





12. : Which blockchain uses the Plutus language for smart contracts?





13. : Which feature ensures smart contracts cannot be tampered with once deployed?





14. : Which platform is known for scalable smart contracts using Rust language?





15. : What is a common use case of smart contracts in finance?





16. : Which of these is a risk in smart contracts?





17. : Which Ethereum token standard is based on smart contracts?





18. : In smart contracts, “gas” refers to:





19. : Which layer of blockchain technology directly enables smart contracts?





20. : What is an oracle in smart contracts?





21. : Which company developed the Solidity programming language?





22. : Which blockchain supports smart contracts with CosmWasm?





23. : Which property ensures smart contracts execute exactly as programmed?





24. : What does DeFi rely on heavily for automation?





25. : Which consensus mechanism initially powered Ethereum smart contracts?





26. : Which smart contract error led to Ethereum’s DAO hard fork in 2016?





27. : Which blockchain uses Move language for smart contracts?





28. : What is a multi-signature smart contract?





29. : Which blockchain introduced CosmWasm smart contracts?





30. : Which standard is used for Ethereum NFTs via smart contracts?





31. : Which blockchain uses Michelson as its smart contract language?





32. : What is the role of bytecode in smart contracts?





33. : Which DeFi activity is most reliant on smart contracts?





34. : What ensures fairness in execution of smart contracts?





35. : Which blockchain supports smart contracts through Substrate framework?





36. : Smart contracts reduce the need for:





37. : Which blockchain upgrade is known for introducing sharding to support smart contracts scalability?





38. : Which language is also used in Hyperledger Fabric chaincode?





39. : Which blockchain supports Cairo language for smart contracts?





40. : What is gas limit in smart contracts?





41. : Which smart contract platform uses Ink! programming language?





42. : Which blockchain supports smart contracts in Clarity language?





43. : What is a DAO in terms of smart contracts?





44. : Which protocol allows smart contracts to communicate across blockchains?





45. : Which blockchain supports Pact smart contracts?





46. : Which tool is commonly used to test and deploy Ethereum smart contracts?





47. : Which blockchain is popular for energy-efficient smart contracts?





48. : What ensures transparency of smart contracts?





49. : Which blockchain uses Sophia language for smart contracts?





50. : What is the ultimate goal of smart contracts in blockchain ecosystems?





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