Technical and Operational Integration Models in Financial Blockchain Systems BFC Practice Questions (Page 6)

Questions 26–30

1. 26expert · hard

   A fintech company is integrating its blockchain-based payment system with multiple banks that use different messaging standards. The company needs to ensure low-latency transactions while maintaining interoperability. Which approach best achieves both goals?

   • AUse a single blockchain network that all banks must join, regardless of their existing standards.
   • BRoute all transactions through a centralized hub that manually converts messages.
   • CUse a proprietary API for each bank to avoid translation overhead.
   • DAdopt a common messaging standard like ISO 20022 and use a high-performance middleware layer for translation.
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2. 27application · medium

   A large bank is integrating blockchain for trade finance. The bank has multiple legacy systems that are deeply embedded in its operations. The bank wants to avoid a 'big bang' cutover and instead gradually migrate processes. Which phased integration strategy is most suitable?

   • ADecommission all legacy systems immediately after the blockchain is deployed.
   • BStart with a non-critical process, such as digital signatures for documents, and then expand to more critical processes over time.
   • CMigrate all processes at once to minimize the transition period.
   • DRun the blockchain in parallel with all legacy systems for an indefinite period.
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4. 28expert · hard

   A payment network is integrating a blockchain-based settlement layer. The network must handle peak transaction volumes during holiday shopping seasons without compromising security or compliance. Which scalability and performance strategy is most appropriate?

   • ADisable certain compliance checks during peak periods to improve performance.
   • BUse a combination of off-chain channels for high-frequency payments and on-chain settlement for final balances, with automated monitoring for compliance.
   • CIncrease the block size to accommodate all transactions during peak periods.
   • DReduce the number of nodes to speed up consensus during peak periods.
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5. 29foundation · easy

   Which of the following is an example of a technical integration model for a financial blockchain system?

   • ARedesigning the loan approval process to include blockchain-based verification steps.
   • BEstablishing a governance committee to oversee blockchain network participation rules.
   • CTraining staff on how to use a new blockchain-based trade finance platform.
   • DUsing a REST API to allow a legacy core banking system to submit transactions to a blockchain network.
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6. 30application · medium

   A company is integrating a blockchain-based supply chain finance platform with its ERP system. The ERP system updates inventory records in real time, and the blockchain must reflect these updates without delay. Which data synchronization approach is most appropriate?

   • AUse a nightly batch job to synchronize data between the ERP and blockchain.
   • BUse event-driven middleware that listens to ERP changes and immediately writes corresponding transactions to the blockchain.
   • CManually update the blockchain whenever the ERP changes.
   • DStore all ERP data on the blockchain and use it as the primary system of record.
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