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 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 2 / 30 2. 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 3 / 30 3. What are some examples of DeFi applications? a) Decentralized exchanges (DEXs) b) Lending and borrowing platforms c) Automated market makers (AMMs) d) All of the above 4 / 30 4. How can anyone participate in a public blockchain? a) By receiving special permission from network administrators b) By installing the blockchain software and connecting to the network c) By paying a subscription fee d) By joining an invitation-only group 5 / 30 5. 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 6 / 30 6. What is a potential drawback of private blockchains? a) Lack of privacy b) Slower transaction speeds c) Higher vulnerability to attacks d) Reduced decentralization 7 / 30 7. Who is credited with the creation of Bitcoin? a) Vitalik Buterin b) Charlie Lee c) Hal Finney d) Satoshi Nakamoto 8 / 30 8. 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 9 / 30 9. Which blockchain platform is known for its support of enterprise-level applications and permissioned networks? a) Ethereum b) Bitcoin c) Hyperledger Fabric d) Ripple 10 / 30 10. What is a hybrid blockchain? a) A blockchain used only for private transactions b) A blockchain that combines elements of both public and private blockchains c) A blockchain without any consensus mechanism d) A blockchain controlled by a single user 11 / 30 11. What is the advantage of Delegated Proof of Stake (DPoS) over Proof of Work (PoW) in terms of scalability? a) DPoS requires less computational power, allowing for faster transaction processing b) DPoS eliminates the need for mining, reducing energy consumption c) DPoS allows for a larger number of transactions per second d) DPoS uses renewable energy sources for validation, reducing environmental impact 12 / 30 12. What impact does blockchain have on fractional ownership of real estate? a) Blockchain decreases accessibility to fractional ownership opportunities b) Blockchain increases barriers to entry for fractional ownership c) Blockchain democratizes fractional ownership by providing transparent and efficient platforms d) Blockchain has no impact on fractional ownership of real estate 13 / 30 13. 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 14 / 30 14. Which of the following is an example of an asymmetric encryption algorithm? a) AES b) RSA c) 3DES d) Blowfish 15 / 30 15. What is a blockchain platform? a) A physical location where blockchain transactions are conducted b) A software system that provides the infrastructure for building and deploying blockchain applications c) A type of cryptocurrency wallet d) A cryptographic algorithm used for encryption 16 / 30 16. 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 17 / 30 17. How does blockchain technology impact the auditability of election results? a) Blockchain decreases auditability by obfuscating voting data b) Blockchain increases auditability by providing transparent and immutable records of votes c) Blockchain has no impact on auditability of election results d) Blockchain only benefits government officials during audits 18 / 30 18. What is the native cryptocurrency of the EOS network? a) EOS Coin (EOSC) b) EOS Token (EOST) c) EOS Dollar (EOSD) d) EOS (EOS) 19 / 30 19. When was Bitcoin first introduced? a) 2007 b) 2008 c) 2009 d) 2010 20 / 30 20. 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 21 / 30 21. What is the significance of interoperability in blockchain-based healthcare systems? a) Interoperability ensures compatibility with legacy systems b) Interoperability allows for seamless data exchange between different healthcare providers c) Interoperability increases security and privacy of patient data d) Interoperability is not relevant to blockchain-based healthcare systems 22 / 30 22. 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 23 / 30 23. Which blockchain network is known for its support of Turing-complete smart contracts? a) Bitcoin b) Ethereum c) Ripple d) Stellar 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. In the context of mining, what is a block header? a) The first transaction in a block b) The last transaction in a block c) The metadata containing information about a block d) The nonce used to solve the cryptographic puzzle 26 / 30 26. How does Proof of Work (PoW) contribute to the energy consumption of blockchain networks? a) By reducing the computational power required to validate transactions b) By increasing the efficiency of transaction processing c) By requiring miners to compete for block rewards through energy-intensive computational tasks d) By limiting the number of transactions that can be processed per second 27 / 30 27. Which consensus mechanism commonly utilizes mining as a means of achieving agreement on the state of the blockchain? a) Proof of Stake (PoS) b) Proof of Authority (PoA) c) Delegated Proof of Stake (DPoS) d) Proof of Work (PoW) 28 / 30 28. How does a Merkle tree improve the efficiency of a blockchain? a) By encrypting data b) By storing user identities c) By summarizing and verifying large sets of transactions efficiently d) By reducing block size 29 / 30 29. What is the maximum supply of Bitcoin that can ever be created? a) 10 million b) 21 million c) 50 million d) 100 million 30 / 30 30. What makes Elliptic Curve Cryptography (ECC) efficient compared to other cryptographic algorithms? a) It uses larger key sizes b) It requires fewer computational resources for the same level of security c) It relies on symmetric encryption d) It does not support digital signatures Please provide accurate information so we can send your Achievement Certificate by mail. 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