Types of Blockchain Networks Flashcards
7 cards from real Blockchain Technology practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Types of Blockchain Networks flashcards as text
Which blockchain network type requires participants to be vetted and approved before joining?
Answer: Permissioned blockchain
Permissioned blockchains require identity verification and approval before a participant can join the network.
A hospital consortium wants to share patient data across member institutions while keeping it private from the public. Which blockchain type is most appropriate?
Answer: Consortium blockchain
Consortium blockchains allow a group of organizations to share data privately among members without exposing it publicly.
What is a key disadvantage of private blockchains compared to public blockchains?
Answer: Reduced decentralization and trust
Private blockchains are controlled by a single organization, reducing the decentralization that makes public blockchains trustworthy.
Which of the following is an example of a public blockchain?
Answer: Ethereum mainnet
Ethereum mainnet is a public blockchain open to anyone, unlike Hyperledger Fabric, Quorum, and Corda which are permissioned.
In a hybrid blockchain, which component is typically kept private?
Answer: Sensitive transactional data
Hybrid blockchains keep sensitive transactional data private while allowing public verification of certain aspects like hashes.
Which blockchain network type is most likely to use a Proof of Authority (PoA) consensus mechanism?
Answer: Private or consortium blockchain
PoA relies on trusted, pre-approved validators, making it suited for private or consortium blockchains where validators are known.
What distinguishes a consortium blockchain from a private blockchain?
Answer: Consortium blockchains are governed by multiple organizations
A consortium blockchain is governed by a group of organizations, while a private blockchain is controlled by a single entity.