{"question": "What is the formula for gas fee calculation on Ethereum?", "choices": ["Units of Gas Used / Base Fee + Priority Fee", "(Units of Gas Used * Base Fee) + Priority Fee", "Units of Gas Used * (Base Fee + Transaction Fee)", "(Units of Gas Used + Base Fee) - Priority Fee"], "answer": "C"} {"question": "Imagine you wanted to pay a friend 2 ETH, and you think it will require two units of gas. The base fee is 11 gwei, and you provide a tip of 3 gwei. What would be your gas fee?", "choices": ["28000 gwei", "0.028 ETH", "0.14 ETH", "28 gwei"], "answer": "D"} {"question": "Convert 999 gwei to ETH", "choices": ["0.000000999 ETH", "0.00000999 ETH", "0.000999 ETH", "0.999 ETH"], "answer": "A"} {"question": "If a blockchain has an average block time of 20 minutes, how many blocks will be added in 4 hours?", "choices": ["24", "12", "6", "18"], "answer": "B"} {"question": "A nonce used in Bitcoin mining is a 32-bit number. How many possible nonce values are there?", "choices": ["2^64", "2^8", "2^32", "2^16"], "answer": "C"} {"question": "A complex transaction on Ethereum blockchain will require 500,000 gas units. If the current gas price is 70 Gwei, what is the total cost of this transaction in Ether?", "choices": ["0.007 ETH", "0.07 ETH", "0.05 ETH", "0.005 ETH"], "answer": "D"}