Blockchain Technology Online Test

Created by

Vikash chaudhary

This 'Blockchain Technology Online Test' covers questions across all the topics related to the Blockchain from basic to advanced.

Get fresh, new questions in each attempt.

Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: Yes
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1 / 30

1. What is the current block reward for mining a new block in the Bitcoin network?

a) 6.25 BTC

b) 10 BTC

c) 25 BTC

d) 50 BTC

2 / 30

2. 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

3 / 30

3. 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

4 / 30

4. What is the role of the XRP Ledger in the Ripple network?

a) To validate transactions and add them to the blockchain

b) To provide a platform for executing smart contracts

c) To distribute rewards to network participants

d) To serve as a decentralized exchange for digital assets

5 / 30

5. 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

6 / 30

6. How does a digital signature ensure the integrity of a blockchain transaction?

a) By encrypting the transaction data

b) By creating a unique hash that can be verified with the sender’s private key

c) By storing the transaction on a central server

d) By using the same key for all transactions

7 / 30

7. 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

8 / 30

8. How does blockchain enhance the security of patient data in healthcare?

a) By encrypting data with traditional encryption methods

b) By decentralizing storage and access to patient data

c) By centralizing control over patient data with healthcare providers

d) By restricting access to patient data through closed networks

9 / 30

9. What is a Bitcoin transaction?

a) A transfer of Bitcoin from one wallet to another

b) A cryptographic algorithm used for encryption

c) A process of mining new Bitcoin blocks

d) A method of exchanging Bitcoin for other cryptocurrencies

10 / 30

10. What is gas in the context of Ethereum transactions?

a) A cryptocurrency used for payments on the Ethereum network

b) A unit of measurement for the computational cost of executing transactions and smart contracts

c) A type of consensus algorithm used for reaching agreement on the state of the Ethereum blockchain

d) A mechanism for selecting the next block proposer in the Ethereum network

11 / 30

11. Which of the following is an example of an asymmetric encryption algorithm?

a) AES

b) RSA

c) 3DES

d) Blowfish

12 / 30

12. What impact does blockchain have on voter turnout and participation?

a) Blockchain decreases voter turnout and participation rates

b) Blockchain increases voter turnout and participation rates

c) Blockchain has no impact on voter turnout and participation

d) Blockchain only benefits government officials, not voters

13 / 30

13. What is one of the main uses of private blockchains?

a) Public data sharing

b) Cryptocurrencies

c) Enterprise-level applications

d) Decentralized social networks

14 / 30

14. How does asymmetric cryptography enhance security in blockchain technology?

a) By using the same key for all transactions

b) By allowing public keys to encrypt data and private keys to decrypt it

c) By eliminating the need for encryption

d) By using very weak encryption methods

15 / 30

15. What is the purpose of gas fees in Ethereum transactions?

a) To reward miners for their work in securing the network

b) To fund blockchain development projects

c) To compensate users for the cost of executing transactions

d) To distribute rewards to network participants

16 / 30

16. Which consensus mechanism is commonly used in private blockchains?

a) Proof-of-work

b) Proof-of-stake

c) Proof-of-authority

d) Proof-of-space

17 / 30

17. What is the purpose of Ethereum smart contracts?

a) To facilitate peer-to-peer cryptocurrency exchanges

b) To store and manage digital assets on the blockchain

c) To provide a platform for decentralized applications

d) To execute self-executing contracts based on predefined conditions

18 / 30

18. Which of the following is an example of a consortium blockchain platform?

a) Bitcoin

b) Ethereum

c) Hyperledger Fabric

d) Corda

19 / 30

19. 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

20 / 30

20. How does ECC encryption work in blockchain?

a) By using the same key for encryption and decryption

b) By generating a shared secret between parties

c) By encrypting data with the recipient's public key

d) By generating digital signatures

21 / 30

21. What is Delegated Proof of Stake (DPoS) in the context of energy-efficient consensus algorithms?

a) A consensus mechanism that selects validators based on their computational power and energy consumption

b) A consensus mechanism that selects validators through a voting process by token holders

c) A cryptographic technique for encrypting data on the blockchain

d) A method for securing private keys in blockchain wallets

22 / 30

22. When was Bitcoin first introduced?

a) 2007

b) 2008

c) 2009

d) 2010

23 / 30

23. What is the primary goal of a Sybil attack?

a) To increase network efficiency and security

b) To decrease transaction fees

c) To manipulate network consensus and gain control over the blockchain

d) To enhance decentralization of the blockchain network

24 / 30

24. 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

25 / 30

25. Which blockchain platform is known for its focus on interoperability between different blockchain networks?

a) Ethereum

b) Hyperledger Fabric

c) Polkadot

d) EOS

26 / 30

26. How does asset tokenization enhance liquidity?

a) By converting physical assets into divisible digital tokens

b) By restricting access to asset ownership

c) By increasing transaction fees

d) By decreasing transparency in asset ownership

27 / 30

27. Which component of RSA encryption and decryption should be kept secret?

a) Public key

b) Private key

c) Hash value

d) Symmetric key

28 / 30

28. 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

29 / 30

29. 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

30 / 30

30. 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

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Blockchain Technology Online Test

This 'Blockchain Technology Online Test' covers questions across all the topics related to the Blockchain from basic to advanced.

Please provide accurate information so we can send your Achievement Certificate by mail.

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