Day 4 - Mining & DApps

What does mining refer to in the context of cryptocurrencies?

• Selling cryptocurrencies

• Hacking into blockchain networks

• Creating new cryptocurrencies

• Validating and adding transactions to the blockchain ledger

What do miners do in the process of mining?

• Create blockchain networks

• Trade cryptocurrencies

• Collect and verify pending transactions

• Design new cryptocurrencies

How are transactions grouped in mining?

• Into blocks

• Into chains

• Into wallets

• Into nodes

What happens when a miner solves the puzzle in mining?

• They broadcast the solution and the block of validated transactions to the network

• They shut down the network

• They delete the transactions

• They keep the solution secret

What is a decentralized application (DApp)?

• A hardware device

• A centralized software application

• A physical location

• A type of distributed, open source software application that runs on a peer-to-peer blockchain network

Where do DApps run?

• On a single computer

• On a peer-to-peer blockchain network

• On a mobile device

• On a cloud server

What is Web3?

• The present evolution of the World Wide Web

• The third version of a popular website

• A type of blockchain

• A new programming language

What are DApps built on?

• A decentralized network supported by a blockchain distributed ledger

• A public website

• A centralized network

• A private server

Which platform are DApps often built using?

• Ethereum

• Ripple

• Bitcoin

• Litecoin

Where are DApps stored and executed?

• On a personal computer

• On a traditional server

• On a USB drive

• On a blockchain system