FREE Certified Blockchain Professional (CBCP) Enterprise Blockchain Platforms Questions and Answers

Question 1

A consortium of competing manufacturers wants to build a supply chain solution on Hyperledger Fabric.
They need to share transactional data with their direct suppliers and logistics partners, but want to ensure that pricing and quantity details remain confidential from other competing manufacturers on the same network.
Which Hyperledger Fabric feature is specifically designed to address this requirement?

Accepted Answer

Channels

Answer

The ordering service

Answer

The Membership Service Provider (MSP)

Answer

State-based endorsement

Question 2

Which enterprise blockchain platform is architecturally designed around a 'need-to-know' principle, where transaction data is NOT broadcast to all nodes on the network but is instead sent directly and privately only to the participants involved in that specific transaction?

Accepted Answer

R3 Corda

Answer

Hyperledger Fabric

Answer

Ethereum (public mainnet)

Answer

ConsenSys Quorum

Question 3

A financial services consortium is using ConsenSys Quorum to settle private transactions between member banks. Which component is primarily responsible for managing the encryption, decryption, and secure distribution of the private transaction payloads to only the authorized participants?

Accepted Answer

Tessera

Answer

The GoQuorum client

Answer

The Istanbul BFT consensus engine

Answer

The smart contract engine

Question 4

In Hyperledger Fabric's transaction lifecycle, what is the specific role of an 'endorsing peer'?

Accepted Answer

To execute a chaincode transaction proposal, sign the result, and return it to the client.

Answer

To bundle transactions into blocks and send them to all peers.

Answer

To validate the final block and write it to its local ledger.

Answer

To manage the cryptographic identities and certificates for all network participants.

Question 5

An enterprise is evaluating blockchain platforms and notes a key difference in their underlying data structures. One platform, R3 Corda, is described as using a UTXO (Unspent Transaction Output)-like model, whereas platforms like Ethereum and Quorum use an account-based model. What is a primary characteristic of Corda's UTXO-like model?

Accepted Answer

Transactions consume existing states as inputs and produce new states as outputs, which are then individually tracked.

Answer

It maintains a global state of all account balances that is updated with each transaction.

Answer

It relies on a central server to calculate and broadcast the current balance of every participant.

Answer

All transaction history for a single asset is stored within one globally accessible smart contract.

Question 6

A consortium of four organizations (A, B, C, D) is operating a Hyperledger Fabric network. A specific chaincode requires that for any transaction to be valid, it must be approved by at least one organization from the pair (A, B) AND organization C. Which Fabric mechanism is used to formally define and enforce this rule before a transaction is committed to the ledger?

Accepted Answer

An endorsement policy

Answer

A Membership Service Provider (MSP) policy

Answer

A channel access policy

Answer

An Access Control List (ACL)