Blockchain Technology Quiz - Study Notes
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Questions and Answers

What is the main feature of blockchain that ensures data cannot be altered once added?

  • Immutability (correct)
  • Scalability
  • Transparency
  • Decentralization
  • What does Proof of Work (PoW) require participants to do?

  • Create digital signatures for transactions
  • Use a private blockchain for security
  • Solve mathematical puzzles to validate transactions (correct)
  • Hold a specific amount of cryptocurrency
  • Which type of blockchain is used in a closed network for organizations?

  • Public Blockchain
  • Private Blockchain (correct)
  • Hybrid Blockchain
  • Consortium Blockchain
  • What is hashing in blockchain technology?

    <p>Converting data into a unique string of characters</p> Signup and view all the answers

    Which blockchain consensus algorithm assigns validation based on coin ownership?

    <p>Proof of Stake (PoS)</p> Signup and view all the answers

    Which feature of blockchain ensures that all participants have access to the same data without a central authority?

    <p>Decentralization</p> Signup and view all the answers

    What is the role of public and private keys in ensuring security within blockchain technology?

    <p>Encrypting data to prevent unauthorized access</p> Signup and view all the answers

    Which blockchain platform is specifically recognized for its effectiveness in facilitating cross-border payments?

    <p>Stellar</p> Signup and view all the answers

    What is the primary function of a smart contract in blockchain technology?

    <p>To automatically execute and enforce agreement terms</p> Signup and view all the answers

    Which type of blockchain allows for multiple organizations to share access while maintaining some level of control?

    <p>Consortium Blockchain</p> Signup and view all the answers

    Study Notes

    Blockchain Technology Quiz - Study Notes

    • Immutability is the key feature of blockchain that ensures data cannot be altered once added.
    • A node in blockchain is a computer that stores blockchain data.
    • A decentralized blockchain system shares data among all participants without a central authority.
    • Encryption uses private and public keys for security in blockchain.
    • Proof of Work (PoW) requires participants to solve mathematical puzzles to validate transactions in a cryptocurrency.
    • Private Blockchain is used in closed networks for organizations.
    • Hashing in blockchain converts data into a unique string of characters.
    • Proof of Stake (PoS) is a consensus algorithm that assigns validation based on coin ownership.
    • A smart contract is code that defines and executes contract terms automatically.
    • Stellar is a platform known for cross-border payments.

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    Description

    Test your knowledge on the essential features of blockchain technology with this quiz! Explore key concepts such as immutability, nodes, and consensus algorithms like Proof of Work and Proof of Stake. Whether you're a beginner or want to refine your understanding of smart contracts and encryption, this quiz is for you.

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