Quiz: Blockchain

True False

A timesheet that you file with your employer once a fortnight A system that uses computational power from computers around the world to secure a blockchain network and generate new coins A system that developers use to log how many hours they have spent working on a blockchain so they can receive fair payment when it is released A cryptocurrency that verifies how much work employees are doing per day None of the above

True False

Speed Security Cost-effectiveness All of the above

True False

A special receipt used in a crypto vampire game to keep track of your wooden stakes The proof given by an exchange about how much of a certain cryptocurrency a user is staking A system that utilises locked cryptocurrency from individual users to help verify transactions and secure a blockchain network None of the above

True False

The concept that blockchains can only be fast, secure, or widely adopted A rap group A theory about the tension between decentralization, scalability, and security in the development of blockchains Three issues that blockchains have historically struggled with None of the above

True False

The second layer of a blockchain, which is responsible for storing transactions after they have been processed An extra layer on top of a blockchain that adds functionality An extra layer that allows regular users to interact with a blockchain None of the above

Consensus algorithms Decentralization Immutability Cryptography All of the above