Hyperledger Fabric Framework and Applications in Finance BFC Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   A global payments network is deploying Hyperledger Fabric with Raft ordering across multiple regions. The compliance team requires that transactions be final and immutable once committed, but the operations team is concerned about network partitions between regions. What is the primary trade-off they must address?

   • ARaft allows transactions to be committed even during a partition, ensuring high availability.
   • BRaft provides eventual consistency, so transactions may be reordered after a partition heals.
   • CRaft provides finality once a transaction is committed, but a network partition can prevent new transactions from being ordered if quorum is lost.
   • DRaft requires all nodes to be online for any transaction to be ordered, so partitions always stop the network.
   Reveal Solution Discussion Select an answer first
2. 12application · medium

   A financial regulator wants to join a Hyperledger Fabric network as a member to audit transactions, but they do not want to participate in endorsing or ordering. What is the best way to grant the regulator read-only access to the ledger?

   • AProvide the regulator with the MSP certificates of an existing member.
   • BAdd the regulator as a peer in the network, but do not install any chaincode on that peer.
   • CCreate a new channel that includes the regulator and all other members, and have all transactions also sent to that channel.
   • DGive the regulator access to the orderer's block data.
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4. 13expert · hard

   A blockchain architect is designing a Hyperledger Fabric network for a stock exchange. The network must handle high transaction throughput and provide low latency. The architect is considering whether to use a single large channel or multiple channels. What is the most important consideration?

   • AA single channel provides better throughput because all transactions are ordered together.
   • BMultiple channels can improve throughput by parallelizing transaction ordering across channels, but they reduce the ability to execute cross-channel transactions atomically.
   • CThe number of channels does not affect performance; only the consensus algorithm matters.
   • DMultiple channels always increase latency due to additional overhead.
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5. 14expert · hard

   A Hyperledger Fabric network is being audited. The auditor wants to verify that a specific transaction was endorsed by the required organizations. Which artifact should the auditor examine?

   • AThe channel configuration block.
   • BThe chaincode source code.
   • CThe orderer's log of received transactions.
   • DThe transaction's endorsement signatures stored in the block.
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   A bank is joining an existing Hyperledger Fabric network used for trade finance. The network administrator provides the bank with a certificate authority (CA) and asks them to configure their organization's membership service provider (MSP). What is the primary purpose of configuring the MSP?

   • ATo configure the consensus algorithm used by the orderers for the bank's transactions.
   • BTo specify the smart contracts that the bank's peers are allowed to execute.
   • CTo define which peers and orderers the bank's clients can connect to.
   • DTo establish the trust roots and define which certificates are valid for the bank's organization, enabling identity verification and access control.
   Reveal Solution Discussion Select an answer first