Quiz: Ethereum Basics

Question 1: Who proposed Ethereum, and in what year?

A. Satoshi Nakamoto, 2008 B. Vitalik Buterin, 2013 C. Gavin Wood, 2015 D. Charles Hoskinson, 2014

Question 2: What is the primary purpose of Ethereum?

A. To serve solely as a digital currency B. To function as a centralized computing platform C. To enable smart contracts and decentralized applications (dApps) D. To replace traditional banking systems

Question 3: How does Ethereum's account-based model differ from Bitcoin's UTXO model?

A. Ethereum uses unspent transaction outputs; Bitcoin updates account balances directly B. Ethereum updates account balances directly; Bitcoin uses unspent transaction outputs C. Both use unspent transaction outputs D. Both update account balances directly

Question 4: What is the Ethereum Virtual Machine (EVM)?

A. A physical machine that processes Ethereum transactions B. A storage device for Ethereum's blockchain C. A consensus mechanism for Ethereum D. A decentralized computing environment that executes smart contracts

Question 5: What is 'gas' in the context of Ethereum?

A. A measure of computational work required to execute operations B. A type of cryptocurrency C. A storage unit for smart contracts D. A consensus algorithm

Question 6: Which programming language is commonly used to write Ethereum smart contracts?

A. Python B. Java C. Solidity D. C++

Question 7: What is the average block time in Ethereum?

A. 10 minutes B. 12-15 seconds C. 1 minute D. 1 hour

Question 8: What consensus mechanism did Ethereum transition to in 2022?

A. Proof of Stake (PoS) B. Proof of Work (PoW) C. Delegated Proof of Stake (DPoS) D. Proof of Authority (PoA)

Question 9: What is a smart contract?

A. A legal agreement between two parties B. A physical contract stored digitally C. A contract that requires manual execution D. Self-executing code that runs on the Ethereum blockchain

Question 10: What is the native cryptocurrency of the Ethereum platform?

A. Bitcoin B. Litecoin C. Ether D. Ripple

Question 11: What does Turing-complete mean in the context of Ethereum?

A. The ability to perform any computation given enough resources B. Limited to basic arithmetic operations C. Restricted to financial transactions D. Incapable of executing loops

Question 12: How does Ethereum handle transaction fees?

A. Fees are fixed for all transactions B. Fees are based on the computational complexity of the transaction, measured in gas C. There are no transaction fees D. Fees are determined by the transaction amount