Hyperledger Fabric Framework and Applications in Finance BFC Practice Questions (Page 8)

Questions 36–40

1. 36expert · hard

   A bank is using a private data collection in Hyperledger Fabric to store customer credit scores. The collection is defined to include only the bank and a credit bureau. A regulator later requests access to the credit scores for audit purposes. What is the most appropriate way to grant the regulator access?

   • ACreate a new channel that includes the regulator and replicate all transactions to it.
   • BProvide the regulator with the bank's private key to decrypt the data.
   • CGive the regulator the private data collection's hash from the channel ledger.
   • DAdd the regulator to the private data collection definition, so they can receive the private data.
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2. 37foundation · easy

   In Hyperledger Fabric, what is a private data collection used for?

   • ATo keep sensitive data confidential from a subset of channel members
   • BTo store data off-chain permanently
   • CTo store data on a separate blockchain
   • DTo encrypt all data on the channel
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4. 38expert · hard

   A large bank is integrating its legacy core banking system with a Hyperledger Fabric network for trade finance. The legacy system uses proprietary message formats and cannot directly call Fabric SDKs. The bank needs to enable real-time transaction submission and query without rewriting the core system. What is the best integration approach?

   • AReplace the legacy system with a new system that natively supports Fabric SDKs.
   • BUse the Fabric Gateway to directly connect the legacy system to the network.
   • CDevelop a middleware adapter that translates the legacy system's messages into Fabric SDK calls and exposes REST APIs.
   • DManually export data from the legacy system and import it into Fabric via batch files.
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5. 39application · medium

   A network architect is designing a Hyperledger Fabric deployment for a multi-national trade finance network. They need to separate the transaction ordering from transaction endorsement to improve scalability and allow different organizations to manage different components. Which architectural approach should they take?

   • AUse a single peer to handle all endorsements and ordering for the entire network.
   • BEliminate the ordering service and have peers communicate directly.
   • CRun the ordering service on the same nodes as the peers to reduce infrastructure costs.
   • DDeploy peers and orderers as separate components, with each organization running its own peers and a shared ordering service.
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6. 40application · medium

   A financial consortium plans to deploy Hyperledger Fabric for a cross-border payment network. The compliance officer insists that every transaction must be verified by multiple independent organizations before it is committed to the ledger, and that no single organization should be able to unilaterally alter the transaction history. The network will use Raft ordering. Which configuration best satisfies the compliance requirement?

   • AEnable private data collections for all transaction data to keep it confidential.
   • BAssign a single organization to be the sole endorser for all chaincode.
   • CConfigure the ordering service with a single Raft node to minimize latency.
   • DSet the endorsement policy to require endorsement from a majority of organizations in the channel.
   Reveal Solution Discussion Select an answer first