Blockchain Quiz

What is a public blockchain?

• A network that anyone can access and participate in

• A network controlled by a single entity

• A network that requires permission to join

• A network used only for private transactions

Which of the following is a primary use of public blockchains?

• Exchanging and mining cryptocurrencies

• Storing personal data

• Creating private networks

• Managing enterprise resources

What does 'immutable' mean in the context of a public blockchain?

• Data cannot be altered once validated

• Data can be deleted by any participant

• Data can be easily changed

• Data is only visible to certain users

What is a key characteristic of a private blockchain?

• It is decentralized

• It allows anonymous transactions

• It is controlled by a single organization

• It is completely open to the public

Which consensus algorithm is commonly used in public blockchains?

• Proof of Authority

• Proof of Work

• Delegated Proof of Stake

• Byzantine Fault Tolerance

What is tokenization?

• A way to increase transaction speeds

• A method for securing blockchain networks

• Transforming ownership of assets into digital tokens

• The process of creating cryptocurrencies

Which of the following is an example of a permissioned blockchain?

• Bitcoin

• Ethereum

• Litecoin

• Hyperledger Fabric

What is a key advantage of consortium blockchains?

• They have low transaction fees

• They are completely decentralized

• They require no permissions

• They are open to anyone

What is the main purpose of a sidechain?

• To increase transaction fees

• To create a new cryptocurrency

• To enable interoperability with the main blockchain

• To store data securely

What is a digital signature?

• A method of encrypting data

• A public key shared with others

• A type of blockchain transaction

• A proof of ownership created using a private key