CBCP Enterprise Blockchain Platforms 4

Question 1

What is the role of 'Anchor Peers' in Hyperledger Fabric's gossip protocol?

Accepted Answer

They serve as reference points enabling cross-organization peer discovery within a channel

Answer

Anchor Peers are designated peers within an organization that facilitate cross-organizational peer discovery through Fabric's gossip data dissemination protocol.

Question 2

Which consensus algorithm used in some enterprise blockchains requires nodes to prove computational effort to earn the right to validate transactions?

Accepted Answer

Proof of Work

Answer

Proof of Work requires nodes to perform computationally expensive hash calculations, but it is generally considered too energy-intensive and slow for enterprise blockchain deployments.

Question 3

In Hyperledger Besu, what does 'IBFT 2.0' refer to?

Accepted Answer

Istanbul Byzantine Fault Tolerant consensus, version 2.0

Answer

IBFT 2.0 (Istanbul Byzantine Fault Tolerant) is a consensus algorithm in Hyperledger Besu designed for private Ethereum networks, offering immediate transaction finality.

Question 4

What is the significance of 'Private Data Collections' in Hyperledger Fabric?

Accepted Answer

They enable specific subsets of channel members to keep data confidential from other channel members

Answer

Private Data Collections allow a subset of organizations within a channel to endorse, commit, and query private data that other channel members cannot access.

Question 5

Which enterprise blockchain platform uses the concept of 'Flows' to orchestrate multi-party business processes?

Accepted Answer

R3 Corda with CorDapp Flows

Answer

R3 Corda uses Flows as a framework for writing multi-party business processes that coordinate communication and state transitions between Corda nodes.

CBCP - Certified Blockchain Professional Practice Test

CBCP - Certified Blockchain Professional Practice Test

CBCP Enterprise Blockchain Platforms 4