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 Ethereum? a) A digital currency similar to Bitcoin b) A blockchain platform that supports smart contracts and decentralized applications c) A centralized payment system d) A type of consensus algorithm used for reaching agreement on the state of the blockchain 2 / 30 2. What is the primary feature of EOS that distinguishes it from other blockchain platforms? a) Higher transaction throughput b) Use of the Delegated Proof of Stake (DPoS) consensus algorithm c) Turing completeness of its smart contracts d) Integration with existing financial systems 3 / 30 3. 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 4 / 30 4. 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 5 / 30 5. What is a public blockchain? a) A blockchain accessible only to authorized users b) A blockchain that requires special permission to join c) A blockchain that is open to anyone to participate and verify transactions d) A blockchain owned by a single entity 6 / 30 6. 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 7 / 30 7. What is the purpose of staking in Proof of Stake (PoS) blockchain networks? a) To verify transactions and add them to the blockchain b) To participate in the consensus process and earn rewards c) To encrypt data on the blockchain d) To secure the network by solving cryptographic puzzles 8 / 30 8. 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 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 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 11 / 30 11. 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 12 / 30 12. What is a stale block in mining? a) A block that contains invalid transactions b) A block that is not accepted by the majority of nodes c) A block that is no longer part of the longest valid chain d) A block that has been successfully mined but not included in the blockchain 13 / 30 13. Why are transactions on a public blockchain considered secure? a) They are encrypted using a secret key b) They are processed by a central authority c) They are verified by multiple independent nodes d) They can be easily altered 14 / 30 14. 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 15 / 30 15. 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 16 / 30 16. 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 17 / 30 17. What are some challenges associated with asset tokenization? a) Legal and regulatory complexities b) Lack of standardized frameworks and guidelines c) Custody and security concerns for digital assets d) All of the above 18 / 30 18. How does blockchain technology protect against data tampering? a) By allowing unrestricted editing of data records b) By implementing centralized data storage systems c) By utilizing cryptographic hashing to create immutable data records d) By relying on single points of failure in data storage 19 / 30 19. What happens if the hash of a blockchain transaction does not match the hash derived from the digital signature verification? a) The transaction is accepted b) The transaction is discarded c) The transaction is re-encrypted d) The transaction is sent for manual review 20 / 30 20. 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 21 / 30 21. Which blockchain platform introduced the concept of smart contracts? a) Bitcoin b) Ethereum c) Ripple d) Litecoin 22 / 30 22. Which component of ECC encryption and decryption should be kept secret? a) Public key b) Private key c) Hash value d) Symmetric key 23 / 30 23. What is the main advantage of using Elliptic Curve Cryptography (ECC) in blockchain? a) Lower computational requirements b) Higher energy consumption c) Slower transaction processing d) Larger key sizes 24 / 30 24. What is the role of validators in Proof of Authority (PoA) 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 based on their authority or reputation d) To distribute rewards to network participants 25 / 30 25. Which hashing algorithm is commonly used in Bitcoin? a) MD5 b) SHA-1 c) SHA-256 d) AES 26 / 30 26. What connects each block to the previous one in a blockchain? a) A timestamp b) A cryptographic hash of the previous block c) The user's signature d) The transaction ID 27 / 30 27. 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 28 / 30 28. Which type of blockchain network can benefit the most from using ECC for encryption and digital signatures? a) Public blockchain b) Private blockchain c) Consortium blockchain d) Hybrid blockchain 29 / 30 29. What incentivizes participants to maintain the network in a public blockchain? a) Government mandates b) Financial rewards such as transaction fees and mining rewards c) Volunteer work d) Network administrators 30 / 30 30. 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 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
