Home» Online Test » Technology » Blockchain Technology Online Test 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This 'Blockchain Technology Online Test' covers questions across all the topics related to the Blockchain from basic to advanced. Get New Questions in Each Attempt Total Questions: 30 Time Allotted: 30 minutes Passing Score: 50% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 30 1. Who are miners in the blockchain ecosystem? a) Individuals who extract physical minerals b) Entities that create new cryptocurrency coins or tokens c) Participants who secure and validate transactions by solving cryptographic puzzles d) Developers who write smart contracts 2 / 30 2. What are some challenges associated with implementing blockchain in healthcare? a) Regulatory compliance and legal uncertainties b) Interoperability and integration with existing systems c) Privacy and confidentiality concerns d) All of the above 3 / 30 3. What impact does decentralization have on blockchain security? a) Decentralization increases the risk of data breaches and cyber attacks b) Decentralization decreases transparency and trust in blockchain networks c) Decentralization enhances security by reducing single points of failure and vulnerabilities d) Decentralization limits scalability and efficiency of blockchain networks 4 / 30 4. What types of assets can be tokenized? a) Real estate properties b) Artwork and collectibles c) Commodities like gold and oil d) All of the above 5 / 30 5. What is the root of a Merkle tree called? a) Block header b) Hash root c) Merkle root d) Leaf node 6 / 30 6. What is the purpose of mining rewards in blockchain? a) To incentivize miners to secure and validate transactions b) To fund blockchain development projects c) To pay transaction fees d) To penalize miners for malicious behavior 7 / 30 7. What is the primary role of a private key in asymmetric cryptography? a) To encrypt data b) To hash data c) To decrypt data and sign transactions d) To share publicly 8 / 30 8. What role do smart contracts play in asset tokenization? a) Smart contracts regulate access to asset ownership b) Smart contracts automate asset tokenization processes c) Smart contracts facilitate centralized control over asset tokenization d) Smart contracts are not relevant to asset tokenization 9 / 30 9. What is one notable use case of Hyperledger Fabric? a) Cross-border payments b) Decentralized finance (DeFi) applications c) Supply chain management d) Decentralized social media platforms 10 / 30 10. How does blockchain technology impact the efficiency of real estate title searches? a) Blockchain decreases the efficiency of real estate title searches by complicating the process b) Blockchain increases the efficiency of real estate title searches by providing instant access to property records c) Blockchain has no impact on the efficiency of real estate title searches d) Blockchain only benefits property owners, not real estate professionals 11 / 30 11. Who is credited with the creation of Ethereum? a) Vitalik Buterin b) Charlie Lee c) Hal Finney d) Satoshi Nakamoto 12 / 30 12. What is a mining pool in blockchain? a) A physical location where miners gather to mine cryptocurrencies b) A group of miners who combine their computational resources to increase their chances of successfully mining blocks and share the rewards c) A software tool used by miners to manage their mining operations d) A decentralized network of mining nodes 13 / 30 13. What is the role of validators in Proof of Stake (PoS) blockchain networks? a) To solve cryptographic puzzles to mine new blocks b) To verify transactions and add them to the blockchain c) To select the next block proposer d) To maintain a copy of the entire blockchain ledger 14 / 30 14. What is Decentralized Finance (DeFi)? a) A centralized financial system controlled by banks and governments b) A system of financial services and applications built on blockchain technology c) A digital currency similar to Bitcoin d) A consensus algorithm used in blockchain networks 15 / 30 15. What role do smart contracts play in real estate transactions on the blockchain? a) Smart contracts automate property construction processes b) Smart contracts regulate access to real estate markets c) Smart contracts facilitate secure and transparent execution of property agreements d) Smart contracts are not relevant to real estate transactions on the blockchain 16 / 30 16. Why might an industry group choose to implement a consortium blockchain? a) To ensure complete public transparency b) To allow any user to join and participate c) To share information securely among a group of trusted entities d) To eliminate the need for consensus mechanisms 17 / 30 17. What role does a public key play in verifying a digital signature? a) It encrypts the signature b) It hashes the data c) It verifies the authenticity of the digital signature d) It decrypts the original data 18 / 30 18. Why is asymmetric cryptography often used for digital signatures in blockchain? a) Because it uses the same key for encryption and decryption b) Because it allows for non-repudiation and secure verification c) Because it is less secure than symmetric cryptography d) Because it is faster than symmetric cryptography 19 / 30 19. What are some capabilities of Metamask? a) Wallet management and Ethereum account creation b) Interaction with decentralized applications (DApps) c) Transaction signing and submission d) All of the above 20 / 30 20. What is a transaction fee in the context of Bitcoin? a) A fee paid by miners to users for including their transactions in a block b) A fee paid by users to miners for processing their transactions on the Bitcoin network c) A fee paid by users to wallet providers for storing their Bitcoin securely d) A fee paid by users to exchanges for trading Bitcoin 21 / 30 21. What is the primary risk associated with a 51% attack? a) Increased network efficiency and security b) Decreased transaction fees c) Double-spending of cryptocurrency d) Enhanced decentralization of the blockchain network 22 / 30 22. How does a private blockchain ensure faster transaction processing compared to a public blockchain? a) By reducing the number of nodes involved in consensus b) By using more complex algorithms c) By eliminating transaction fees d) By allowing anyone to validate transactions 23 / 30 23. What are some benefits of using blockchain in real estate? a) Increased risk of data breaches and cyber attacks b) Reduced costs and time associated with property transactions c) Limited accessibility to property markets d) Decreased transparency and trust in property ownership records 24 / 30 24. What is a blockchain framework? a) A set of rules and regulations governing the use of blockchain technology b) A software development toolkit for building blockchain applications c) A type of consensus algorithm used for reaching agreement on the state of the blockchain d) A mechanism for securing and encrypting blockchain transactions 25 / 30 25. What is Ripple? a) A blockchain framework for developing enterprise-grade applications b) A digital currency similar to Bitcoin c) A decentralized cryptocurrency platform d) A real-time gross settlement system and currency exchange network 26 / 30 26. What does it mean for a hash function to be "collision-resistant"? a) It can be easily reversed b) It produces the same output for different inputs c) It is hard to find two different inputs that produce the same output d) It requires less computational power 27 / 30 27. What is symmetric cryptography? a) A method where the same key is used for both encryption and decryption b) A method where different keys are used for encryption and decryption c) A method that requires no keys d) A method that uses multiple keys for encryption 28 / 30 28. What is a key feature of blockchain technology that enhances security? a) Centralized data storage b) Transparency of transaction history c) Immutability of data records d) Limited access controls 29 / 30 29. What are some potential benefits of integrating blockchain with IoT? a) Decreased data security and integrity in IoT networks b) Increased vulnerability to data breaches and cyber attacks c) Enhanced data traceability and auditability in IoT ecosystems d) Limited scalability and interoperability of IoT devices 30 / 30 30. What is Elliptic Curve Cryptography (ECC)? a) A symmetric encryption algorithm b) A hashing algorithm c) An asymmetric encryption algorithm d) A digital signature algorithm Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. 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