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 function of RSA in blockchain? a) To create hashes for data integrity b) To encrypt transaction data c) To generate and verify digital signatures d) To compress blockchain data 2 / 30 2. How does RSA encryption work? a) Both sender and receiver share the same secret key b) Sender encrypts data with the receiver's public key, and the receiver decrypts it with their private key c) Sender encrypts data with their private key, and the receiver decrypts it with their public key d) Sender and receiver independently generate random keys for encryption and decryption 3 / 30 3. 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 4 / 30 4. What role do token holders play in Delegated Proof of Stake (DPoS) consensus mechanism? a) Token holders solve complex mathematical puzzles to validate transactions b) Token holders control access to blockchain networks through centralized authorities c) Token holders vote for delegates who are responsible for validating transactions d) Token holders have no influence on the consensus mechanism in DPoS 5 / 30 5. What are some benefits of asset tokenization? a) Increased liquidity and accessibility to asset ownership b) Lower transaction costs and faster settlement times c) Enhanced transparency and security through blockchain technology d) All of the above 6 / 30 6. Why are hashing and digital signatures important for blockchain security? a) They speed up transaction processing b) They allow for anonymous transactions c) They ensure data integrity and authenticity d) They reduce the need for consensus mechanisms 7 / 30 7. What is the role of smart contracts in DApps? a) Smart contracts provide a user interface for interacting with the application b) Smart contracts execute predefined rules and conditions governing the operation of the application c) Smart contracts act as a consensus mechanism for validating transactions d) Smart contracts serve as a centralized database for storing application data 8 / 30 8. What is scalability in the context of the blockchain trilemma? a) The ability of blockchain networks to accommodate increasing numbers of users and transactions b) The distribution of control and decision-making power among network participants c) The prevention of unauthorized access to blockchain networks d) The use of cryptographic techniques to secure data on the blockchain 9 / 30 9. What is the significance of blockchain technology in financial inclusion? a) Blockchain technology increases barriers to entry for unbanked individuals b) Blockchain technology enables access to financial services for unbanked individuals c) Blockchain technology only benefits traditional banking institutions d) Blockchain technology is not relevant to financial inclusion efforts 10 / 30 10. What is the role of delegates in Delegated Proof of Stake (DPoS) networks? a) To mine new blocks by solving cryptographic puzzles b) To verify transactions and add them to the blockchain c) To participate in the consensus process and validate transactions on behalf of token holders d) To distribute rewards to network participants 11 / 30 11. What type of consensus mechanism is often used in consortium blockchains? a) Proof-of-work b) Proof-of-stake c) Proof-of-authority d) Proof-of-space 12 / 30 12. 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 13 / 30 13. What is staking in the context of blockchain? a) Holding cryptocurrency in a wallet b) Selling cryptocurrency on an exchange c) Donating cryptocurrency to a charity d) Locking up cryptocurrency as collateral to participate in the network and earn rewards 14 / 30 14. What distinguishes DEXs from centralized exchanges? a) DEXs use a centralized order matching engine b) DEXs require users to undergo KYC/AML procedures c) DEXs do not hold users' funds or private keys d) DEXs offer higher liquidity compared to centralized exchanges 15 / 30 15. What is the term used to describe the process of validating transactions and adding them to a new block in the blockchain? a) Mining b) Confirmation c) Verification d) Transaction processing 16 / 30 16. Which blockchain platform is known for its support of enterprise-level applications and permissioned networks? a) Ethereum b) Bitcoin c) Hyperledger Fabric d) Ripple 17 / 30 17. How does blockchain ensure the integrity of transactions using asymmetric cryptography? a) By encrypting all data with the same key b) By using digital signatures and public/private key pairs c) By storing keys in a central database d) By avoiding encryption altogether 18 / 30 18. What is the environmental impact of Proof of Work (PoW) consensus mechanism? a) Minimal environmental impact due to efficient energy usage b) Significant environmental impact due to high energy consumption and carbon emissions c) Neutral environmental impact as it does not rely on energy consumption d) Positive environmental impact by promoting renewable energy usage 19 / 30 19. What is Delegated Proof of Stake (DPoS)? a) A consensus algorithm where participants are rewarded based on the amount of cryptocurrency they hold or stake b) A mechanism for selecting the next block proposer in a blockchain network c) A consensus algorithm where participants vote for a limited number of delegates to validate transactions on their behalf d) A cryptographic algorithm used for digital signatures 20 / 30 20. How does a digital signature work in conjunction with hashing to secure blockchain transactions? a) The transaction data is encrypted with a symmetric key b) The hash of the transaction data is encrypted with the sender's private key c) The public key is used to hash the transaction data d) The transaction data is stored in plaintext 21 / 30 21. What is the function of the timestamp in a block header? a) To record the current time when the block is mined b) To determine the difficulty level of mining c) To identify the miner who mined the block d) To encrypt transaction data 22 / 30 22. 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 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 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 25 / 30 25. What is slashing in Proof of Stake (PoS) blockchain networks? a) A penalty imposed on validators for malicious behavior or failing to follow the protocol b) A reward given to validators for successfully validating transactions c) A cryptographic algorithm used for encryption d) A mechanism for selecting the next block proposer 26 / 30 26. What programming language is commonly used to write Ethereum smart contracts? a) Python b) JavaScript c) Solidity d) Java 27 / 30 27. In blockchain, what is the primary purpose of a nonce? a) To verify user identities b) To secure transaction data c) To vary the input for the hash function to meet the difficulty target d) To connect blocks 28 / 30 28. What is Proof of Work (PoW) in the context of blockchain technology? a) A mechanism for verifying the authenticity of digital signatures b) A consensus mechanism that requires participants to solve complex mathematical puzzles to validate transactions c) A cryptographic technique for encrypting data on the blockchain d) A method for securing private keys in blockchain wallets 29 / 30 29. What is the native cryptocurrency of the EOS network? a) EOS Coin (EOSC) b) EOS Token (EOST) c) EOS Dollar (EOSD) d) EOS (EOS) 30 / 30 30. 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 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 Share the above MCQs: Click to share on Facebook (Opens in new window) Facebook Click to share on WhatsApp (Opens in new window) WhatsApp Click to share on X (Opens in new window) X Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on Reddit (Opens in new window) Reddit
