Understanding Blockchain

This lesson covers the fundamentals of blockchain technology, including the concepts of first-level and second-level blockchains. It includes three questions related to blockchain technology.

What is a second-level blockchain?

A sidechain

A permissioned blockchain

A hybrid blockchain

What is a first-level blockchain?

A private blockchain

A consortium blockchain

A public blockchain

What is blockchain?

A decentralized digital ledger

A centralized digital ledger

A distributed database