Blockchain Technology Types of Blockchain Networks 2

Question 1

Which blockchain network type requires participants to be vetted and approved before joining?

Accepted Answer

Permissioned blockchain

Answer

Permissioned blockchains require identity verification and approval before a participant can join the network.

Question 2

A hospital consortium wants to share patient data across member institutions while keeping it private from the public. Which blockchain type is most appropriate?

Accepted Answer

Consortium blockchain

Answer

Consortium blockchains allow a group of organizations to share data privately among members without exposing it publicly.

Question 3

What is a key disadvantage of private blockchains compared to public blockchains?

Accepted Answer

Reduced decentralization and trust

Answer

Private blockchains are controlled by a single organization, reducing the decentralization that makes public blockchains trustworthy.

Question 4

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

Accepted Answer

Ethereum mainnet

Answer

Ethereum mainnet is a public blockchain open to anyone, unlike Hyperledger Fabric, Quorum, and Corda which are permissioned.

Question 5

In a hybrid blockchain, which component is typically kept private?

Accepted Answer

Sensitive transactional data

Answer

Hybrid blockchains keep sensitive transactional data private while allowing public verification of certain aspects like hashes.

Blockchain Practice Test

Blockchain Practice Test

Blockchain Technology Types of Blockchain Networks 2