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Blockchain
Unit 1
Introduction to Blockchain
What is Blockchain?
How Does Blockchain Work?
Types of Blockchains
Blockchain Applications
Challenges and Future of Blockchain
Unit 2
How Bitcoin Uses Blockchain
Introduction to Bitcoin and Blockchain
Bitcoin Transactions and Blockchain Verification
Security and Consensus in Bitcoin Blockchain
Unit 3
What are Dapps
Introduction to Dapps
Architecture of Dapps
Development of Dapps
Unit 4
What is Ethereum
Introduction to Ethereum
Ethereum Virtual Machine (EVM)
Ethereum Mining and Consensus
Ethereum Improvement Proposals (EIPs)
Ethereum Use Cases and Applications
Unit 1 • Chapter 2
How Does Blockchain Work?
Summary
false
Concept Check
What is a key characteristic of blockchain technology?
Centralization
Encryption
Decentralization
Authorization
What is the purpose of miners in blockchain?
To regulate the market
To hack the system
To create new coins
To validate transactions
What consensus algorithm is commonly used in blockchain?
Delegated proof of stake
Proof of stake
Proof of work
Byzantine fault tolerance
What is a block in a blockchain?
A cryptographic key
A single transaction
A timestamped document
A collection of transactions
How are transactions verified in a blockchain network?
By the user who initiated the transaction
By multiple nodes reaching consensus
By a centralized authority
By a single random node
Check Answer
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What is Blockchain?
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Types of Blockchains