Multiple Choice
Consensus is reached:
A) by the miner nodes which make sure that a transaction is valid.
B) by every single node in the blockchain network executing the same transaction.
C) by a cryptographic secure signature algorithm called ECDSA which makes sure that cheating is impossible.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: What are Private Keys used for?<br>A) To
Q3: To develop smart contracts:<br>A) it's good to
Q4: When you are programming a game like
Q5: Files can be imported:<br>A) using relative and
Q6: To communicate with an Ethereum node via
Q7: When solidity is compiled then also Metadata
Q8: Multi-Line Comments in Solidity are:<br>A) working with
Q9: Gas costs accrue on sending a transaction:<br>A)
Q10: What's the correct scientific notation?<br>A) 1 Ether
Q11: Block Difficulty:<br>A) is determined by the Ethereum