Strategic Planning for Enterprise Blockchain Adoption BBLC Practice Questions (Page 5)

Questions 21–25

1. 21application · hard

   A European healthcare consortium is planning a blockchain to share patient consent records among hospitals, clinics, and research institutions. The consortium must comply with GDPR, which includes the right to erasure ('right to be forgotten'). The legal team is concerned that the immutability of a blockchain conflicts with this requirement. Which governance and architecture design best addresses this compliance challenge?

   • AStore only a cryptographic hash of the consent record on-chain, and store the actual consent data in an off-chain database that can be updated or deleted as required.
   • BImplement a 'hard fork' of the blockchain every time a deletion request is made to rewrite the entire history.
   • CUse a public permissionless blockchain so that no single entity is the 'data controller' and therefore GDPR does not apply.
   • DEncrypt the consent data on-chain and store the decryption key with a trusted third party who can destroy the key upon request.
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2. 22application · medium

   A food retailer is considering blockchain to improve traceability of produce from farm to store. The current process relies on paper records and manual audits, which are slow and error-prone. Which business driver is most directly addressed by blockchain in this scenario?

   • AReducing the time and cost of verifying product origin during recalls or audits.
   • BReducing the need for physical store locations.
   • CIncreasing the speed of in-store checkout transactions.
   • DEliminating the need for any external audits.
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4. 23expert · hard

   A pharmaceutical company has successfully piloted a blockchain for clinical trial data management. The pilot showed a 20% reduction in data verification time. The company is now building the business case for a full-scale rollout. The CFO is skeptical and wants a concrete ROI projection. The CTO points out that the full-scale rollout will require significant changes to how research teams work. The Chief Compliance Officer notes that the system will make audit trails more transparent. Which approach best addresses the CFO's need for a concrete ROI projection while acknowledging the other strategic benefits?

   • ADefer the ROI calculation until after the full-scale rollout is complete, and rely on the CTO's technical assessment to justify the investment.
   • BPresent a multi-faceted business case that includes a quantified ROI projection based on the pilot's time savings, alongside a qualitative assessment of the value of improved audit trails and a change management plan to address research team adoption.
   • CFocus exclusively on the 20% time savings from the pilot and project that as the sole financial benefit of the full-scale rollout.
   • DPresent the improved audit trails as the primary ROI driver, and argue that the time savings are secondary.
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5. 24application · medium

   A mid-sized manufacturing firm is planning to join a consortium blockchain for supply chain traceability. The firm's internal IT team is small and has expertise in traditional relational databases but no experience with distributed ledger technology (DLT). The leadership team wants to minimize upfront capital expenditure and avoid a lengthy hiring process. Which resource and capability plan is most appropriate for this stage?

   • APurchase a standalone blockchain platform and run it in a silo, disconnected from the consortium, to allow the IT team to experiment safely.
   • BRely entirely on the consortium's existing technical documentation and have the current IT team learn on the job without any external support.
   • CHire a full team of blockchain developers and architects immediately to build and maintain a proprietary, in-house blockchain network.
   • DEngage a managed blockchain service provider to operate the network nodes, while assigning two existing IT staff to a training program focused on consortium governance and data integration.
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6. 25expert · hard

   A government agency is considering blockchain for a national digital identity system. The agency needs to balance public transparency with citizen privacy, and it must ensure that the system is resilient and not controlled by any single vendor. Which architecture and governance choice best meets these requirements?

   • AA centralized database managed by the agency itself.
   • BA private blockchain owned by a single technology vendor.
   • CA public blockchain where all identity data is visible to anyone.
   • DA permissioned blockchain operated by multiple government agencies with a transparent governance framework and privacy-preserving cryptographic techniques.
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