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 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 2 / 30 2. What are some examples of decentralized applications (DApps)? a) Decentralized exchanges (DEXs) b) Decentralized finance (DeFi) platforms c) Decentralized social media networks d) All of the above 3 / 30 3. How often is a new block added to the Bitcoin blockchain? a) Every 10 minutes b) Every hour c) Every day d) Every week 4 / 30 4. What are some risks associated with participating in ICOs? a) Lack of regulation and investor protection b) Potential for scams and fraudulent projects c) Volatility and price fluctuations of ICO tokens d) All of the above 5 / 30 5. What is the native cryptocurrency of the EOS network? a) EOS Coin (EOSC) b) EOS Token (EOST) c) EOS Dollar (EOSD) d) EOS (EOS) 6 / 30 6. 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 7 / 30 7. What role do blockchain-based registries play in protecting intellectual property rights? a) Blockchain-based registries centralize control over intellectual property rights b) Blockchain-based registries increase anonymity of intellectual property owners c) Blockchain-based registries provide transparent and tamper-proof records of intellectual property ownership d) Blockchain-based registries restrict access to intellectual property rights 8 / 30 8. What is an Initial Coin Offering (ICO)? a) A method of fundraising where investors purchase shares of a company b) A type of cryptocurrency exchange c) A regulatory body overseeing blockchain projects d) A method of crowdfunding where new cryptocurrency tokens are offered to investors 9 / 30 9. What are some challenges associated with using blockchain for cross-border payments? a) Regulatory uncertainty and compliance issues b) Limited scalability and transaction throughput c) Lack of interoperability between different blockchain networks d) All of the above 10 / 30 10. What is EOS? a) A blockchain network designed for cross-border payments b) A digital currency similar to Bitcoin c) A blockchain platform for decentralized applications (DApps) d) A cryptocurrency wallet 11 / 30 11. Which mathematical concept forms the basis of Elliptic Curve Cryptography (ECC)? a) Prime numbers b) Elliptic curves over finite fields c) Matrix multiplication d) Fibonacci sequence 12 / 30 12. Which of the following is an example of a widely used cryptographic hash function? a) RSA b) SHA-256 c) DES d) AES 13 / 30 13. What is the significance of the Genesis Block in the Bitcoin blockchain? a) It is the first block ever mined on the Bitcoin blockchain b) It is the block with the highest number of transactions c) It is the block that introduced the concept of mining d) It is the block that marked the first Bitcoin halving event 14 / 30 14. How are validators selected to participate in block validation in Proof of Stake (PoS) networks? a) Randomly b) Based on the amount of cryptocurrency they hold or stake c) Based on their computational power d) Based on their reputation in the network 15 / 30 15. Who is credited with the creation of Bitcoin? a) Vitalik Buterin b) Charlie Lee c) Hal Finney d) Satoshi Nakamoto 16 / 30 16. What is the role of miners in the Bitcoin blockchain network? a) To verify transactions and add them to the blockchain b) To encrypt data on the blockchain c) To distribute rewards to network participants d) To select the next block proposer 17 / 30 17. In blockchain, what ensures that a block has not been tampered with after its creation? a) The block's size b) The timestamp c) The block's hash d) The miner’s identity 18 / 30 18. Which cryptographic algorithm is used for digital signatures and encryption in blockchain? a) SHA-256 b) RSA c) MD5 d) AES 19 / 30 19. What happens when a block’s hash meets the difficulty target in a proof-of-work blockchain? a) The block is discarded b) The block is added to the blockchain c) The block is encrypted d) The block is split into smaller blocks 20 / 30 20. How does blockchain technology address concerns of voter fraud and manipulation? a) By centralizing control over voting systems b) By increasing anonymity of voter identity c) By decentralizing storage and verification of voting data d) By limiting access to voting systems 21 / 30 21. 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 22 / 30 22. What is the Ethereum Virtual Machine (EVM)? a) A physical machine used to mine Ethereum blocks b) A software environment that executes smart contracts on the Ethereum blockchain c) A type of consensus algorithm used for reaching agreement on the state of the Ethereum blockchain d) A mechanism for validating transactions on the Ethereum network 23 / 30 23. 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 24 / 30 24. What is the term used to describe the computational power contributed by a miner to the network? a) Mining power b) Hash rate c) Network strength d) Block difficulty 25 / 30 25. What is the significance of regulatory compliance in asset tokenization? a) Regulatory compliance ensures security of asset tokenization platforms b) Regulatory compliance facilitates integration with traditional financial systems c) Regulatory compliance mitigates risks and protects investors d) Regulatory compliance hinders innovation in asset tokenization 26 / 30 26. 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 27 / 30 27. What is the process of mining in the Bitcoin network? a) Verifying transactions and adding them to the blockchain b) Encrypting data on the blockchain c) Solving complex mathematical puzzles to create new blocks d) Exchanging Bitcoin for other cryptocurrencies 28 / 30 28. 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 29 / 30 29. What is a potential drawback of private blockchains? a) Lack of privacy b) Slower transaction speeds c) Higher vulnerability to attacks d) Reduced decentralization 30 / 30 30. What is the process of mining a new block in a Proof-of-Work (PoW) blockchain? a) Selecting random transactions and adding them to the blockchain b) Solving a complex mathematical puzzle known as the "hash puzzle" c) Writing smart contracts on the blockchain d) Verifying transactions by checking digital signatures 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. Send feedback Buy Blockchain Technology MCQ PDF for Offline Study
