Ethereum Essentials

Test your knowledge on Ethereum's core concepts, including smart contracts, the consensus mechanism after the Merge, and the role of gas in transactions.

Which consensus mechanism did Ethereum switch to after the 'Merge' update in 2022?

Proof of Work (PoW)

Delegated Proof of Stake (DPoS)

Proof of Stake (PoS)

Proof of Capacity (PoC)

What is 'gas' in the context of Ethereum?

A reward given to miners for verifying transactions

The fuel used to power Ethereum mining machines

The computational work required to perform operations on the Ethereum network

The number of transactions Ethereum can process in a second