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. What is the role of network consensus in ensuring blockchain security? a) Network consensus increases the risk of data manipulation in blockchain networks b) Network consensus ensures transparency and integrity of transactions in blockchain networks c) Network consensus restricts access to blockchain networks d) Network consensus has no impact on blockchain security 2 / 30 2. What is a smart contract platform? a) A platform for conducting secure cryptocurrency transactions b) A platform for developing and executing self-executing contracts based on blockchain technology c) A platform for storing and managing digital assets d) A platform for mining new cryptocurrency coins 3 / 30 3. How do cryptocurrencies enable secure and transparent transactions? a) By relying on centralized servers for transaction processing b) By using cryptographic techniques and blockchain technology c) By storing user data on public databases d) By requiring users to disclose personal information for every transaction 4 / 30 4. What is a block reward in the context of mining? a) A fee paid by users for transaction processing b) The reward given to miners for solving a cryptographic puzzle and adding a new block to the blockchain c) The penalty imposed on miners for attempting to manipulate the blockchain d) The cost of electricity consumed during the mining process 5 / 30 5. How does blockchain technology prevent unauthorized access to data? a) By centralizing control over data access b) By encrypting data with traditional encryption methods c) By distributing data across a decentralized network with cryptographic protection d) By restricting access to data through closed networks 6 / 30 6. What is the role of RSA in generating digital signatures in blockchain? a) To encrypt the transaction data b) To hash the transaction data c) To encrypt the hashed transaction data with the sender's private key d) To encrypt the hashed transaction data with the receiver's public key 7 / 30 7. What is Truffle? a) A digital currency similar to Bitcoin b) A blockchain platform for building decentralized applications (DApps) c) A development framework and environment for Ethereum smart contracts d) A consensus algorithm used in blockchain networks 8 / 30 8. What is the primary drawback of Proof of Authority (PoA) compared to Proof of Work (PoW) in terms of decentralization? a) PoA requires less computational power, resulting in a lower barrier to entry for validators b) PoA relies on a centralized authority to authorize validators, reducing decentralization c) PoA allows for faster transaction processing, increasing network efficiency d) PoA eliminates the need for mining, reducing energy consumption 9 / 30 9. What is the role of consensus mechanisms in blockchain-based voting systems? a) Consensus mechanisms regulate access to voting systems b) Consensus mechanisms determine the outcome of elections c) Consensus mechanisms ensure agreement on the validity of transactions d) Consensus mechanisms are not relevant to blockchain-based voting systems 10 / 30 10. What is the primary advantage of using blockchain platforms and frameworks for application development? a) Reduced complexity of application development b) Faster transaction processing c) Higher level of centralization d) Lower security risks 11 / 30 11. What are some benefits of blockchain-based voting systems? a) Increased vulnerability to cyber attacks b) Reduced costs and increased efficiency of elections c) Decreased accessibility for voters d) Limited transparency and accountability in election results 12 / 30 12. What is the primary advantage of DeFi compared to traditional finance? a) Lower transaction fees b) Higher security and transparency c) Faster transaction settlement times d) All of the above 13 / 30 13. What is the output of a hashing function typically called? a) Key pair b) Hash value or digest c) Ciphertext d) Encrypted message 14 / 30 14. In a private blockchain, who typically has permission to validate transactions? a) Any user on the internet b) A pre-selected group of participants c) Only the network owner d) Anonymous users 15 / 30 15. How does a blockchain network defend against a 51% attack? a) By increasing transaction fees b) By implementing stronger encryption algorithms c) By requiring more confirmations for transactions d) By restricting access to the network 16 / 30 16. What is the primary purpose of hashing in blockchain? a) To encrypt data b) To create a fixed-size output from variable input data c) To generate public and private keys d) To manage user identities 17 / 30 17. What is the significance of transparency in blockchain-based real estate transactions? a) Transparency ensures anonymity of property ownership b) Transparency increases complexity of property transactions c) Transparency enhances trust and integrity of property transactions d) Transparency decreases accessibility to property markets 18 / 30 18. 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 19 / 30 19. What is the difference between front-end and back-end in the context of DApps? a) Front-end refers to the blockchain network, while back-end refers to the user interface b) Front-end refers to the user interface, while back-end refers to the blockchain network and smart contracts c) Front-end refers to the consensus mechanism, while back-end refers to the application logic d) Front-end and back-end are interchangeable terms in the context of DApps 20 / 30 20. What are some common criteria investors consider when evaluating ICO projects? a) Team expertise and experience b) Project roadmap and timeline c) Tokenomics and distribution model d) All of the above 21 / 30 21. What are some challenges associated with implementing blockchain in voting and governance? a) Lack of public trust in blockchain technology b) Regulatory uncertainty and legal challenges c) Complexity of integrating blockchain with existing voting systems d) All of the above 22 / 30 22. 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 23 / 30 23. Which component of RSA encryption and decryption should be kept secret? a) Public key b) Private key c) Hash value d) Symmetric key 24 / 30 24. How does asset tokenization democratize investment opportunities? a) By restricting access to asset ownership b) By increasing barriers to entry for investors c) By enabling fractional ownership of high-value assets d) By centralizing control over investment opportunities 25 / 30 25. What is the term used to describe the process of delegating cryptocurrency to a validator in a Proof of Stake (PoS) network? a) Staking b) Delegation c) Locking d) Minting 26 / 30 26. How are transaction fees determined in the Bitcoin network? a) They are set by the Bitcoin protocol and remain constant b) They are determined by miners based on the size and urgency of the transaction c) They are negotiated between users and miners through smart contracts d) They are fixed and standardized across all transactions 27 / 30 27. What is the role of the mempool in the Bitcoin network? a) To store unconfirmed transactions waiting to be included in blocks b) To mine new blocks and add them to the blockchain c) To verify the authenticity of transactions d) To distribute transaction fees to network participants 28 / 30 28. What is a Decentralized Application (DApp)? a) A software application that runs on a centralized server b) A software application that runs on a decentralized network of computers c) A type of cryptocurrency d) A consensus algorithm used in blockchain networks 29 / 30 29. What is the native cryptocurrency of the Stellar network? a) Lumens (XLM) b) Stellars (XLS) c) Stratos (XST) d) Stellar Coin (XSC) 30 / 30 30. 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 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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