Blockchain 1

What is a smart contract?

• A legally binding agreement between two parties

• A traditional paper contract

• A digital signature

• Self-executing code that automatically enforces the terms of a contract

What does NFT stand for in the context of Blockchain?

• New Financial Technology

• Network File Transfer

• Non-Fungible Token

• Non-Functional Token

Which programming language is commonly used for writing smart contracts on the Ethereum blockchain?

• Python

• Java

• Solidity

• C++

What is Web3?

• The third version of the World Wide Web

• A new web browser

• A social media platform

• A decentralized internet where users control their data and identity

Which consensus algorithm is used in Ethereum 2.0?

• Proof of Work

• Proof of Authority

• Proof of Stake

• Delegated Proof of Stake

What is Solidity?

• A type of blockchain

• A consensus algorithm

• A programming language for writing smart contracts

• A decentralized application

What is Proof of Stake (PoS)?

• A type of cryptocurrency

• A smart contract

• A digital signature

• A method of validating transactions on a blockchain

Which of the following is NOT a type of distributed system?

• Centralized

• Decentralized

• Hybrid

• Autonomous

What is a Merkle Tree commonly used for in Blockchain?

• Storing cryptocurrency

• Mining new blocks

• Verifying data integrity

• Securing transactions

Which consensus algorithm is used in the Bitcoin blockchain?

• Proof of Work

• Proof of Stake

• Delegated Proof of Stake

• Byzantine Fault Tolerance