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Web3 Fundamentals
Test your knowledge on the basics of Web3 and its underlying technologies.
What is a blockchain?
A type of database
A social media platform
A web server
A programming language
What is the difference between a public and a private blockchain?
Public blockchains are open to anyone, while private blockchains are restricted to specific users.
Private blockchains are always more secure than public blockchains.
Public blockchains are faster than private blockchains.
Public blockchains do not use consensus mechanisms.
What is a decentralized application (dApp)?
An application that runs on a single server
An application that is hosted on a cloud service
A mobile application
An application that runs on a peer-to-peer network
What is a consensus mechanism in blockchain?
A way to create dApps
A type of smart contract
A method to secure private keys
A process to validate transactions
What are smart contracts?
Self-executing contracts with the terms directly written into code
Contracts written in legal language
Contracts that require a notary
Traditional paper contracts
What is the role of miners in a blockchain network?
To store data
To develop smart contracts
To create new blocks
To validate transactions
What is a token in the context of blockchain?
A physical coin used in transactions
A digital representation of a unit of value
A method of data storage
A type of smart contract
What is the purpose of a cryptocurrency wallet?
To mine new coins
To create smart contracts
To store and manage cryptocurrencies
To facilitate blockchain governance
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