Blockchain is an essentially immutable database that stores copies of data on networked computers, or nodes, that are each responsible for recording new transactions and agreeing on a consensus before making updates.
As a peer-to-peer (P2P) technology, blockchain manages data in a decentralized manner instead of keeping it on a central computer. It's a type of distributed ledger technology, though not all DLTs use blockchain.
Decentralized finance technologies, such as cryptocurrency and non-fungible tokens, often come to mind when consumers think of blockchain. But the technology can also support cybersecurity, supply chain management, manufacturing and other business functions.
This quiz asks broad questions about what blockchain is and what it can do. Test yourself on the differences between a smart contract and a smart legal contract, and find out what altering records on the blockchain does to previously recorded data. If you feel confident about how to use blockchain in the enterprise, use the quiz to assess your knowledge of the fundamental concepts of blockchain and the most common enterprise use cases. When you complete the quiz, you can review each answer and read an explanation of the topic with links to more resources.