Blockchain Applications Across Key Industry Sectors BBLC Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A coffee retailer wants to prove to customers that its beans are sourced from fair-trade farms. The retailer also wants to be able to quickly identify which farms supplied a specific batch if a quality issue is found. Which blockchain-based solution is most appropriate?

   • AUse a public blockchain to record the retailer's marketing claims about the coffee.
   • BPrint a 'fair-trade' label on the packaging and maintain a customer service email for questions.
   • CRecord each batch's journey from farm to store on a permissioned blockchain, including fair-trade certifications and quality test results.
   • DStore the farm's name and batch number in a spreadsheet that is shared with customers on request.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A customs authority wants to reduce the time it takes to verify import documents. Currently, importers submit paper documents that must be manually checked against the exporter's records. The authority wants to verify the authenticity of digital documents without having to contact the exporter's bank each time. Which blockchain-based approach is most effective?

   • AAccept scanned copies of paper documents and verify them by calling the exporter's bank.
   • BCreate a centralized database of documents that only customs can access.
   • CUse a public blockchain to store the full text of all trade documents.
   • DUse a permissioned blockchain where exporters' banks issue digitally signed trade documents that customs can verify against the ledger.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   In the retail sector, what is a key challenge when implementing blockchain for supply chain traceability?

   • ABlockchain cannot handle high transaction volumes
   • BLack of any potential benefit from traceability
   • CRetailers do not need to share data with suppliers
   • DIntegrating blockchain with existing legacy systems
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A trade finance consortium of banks and customs authorities wants to simplify regulatory audits. Currently, each institution keeps its own records, and auditors must reconcile discrepancies across systems. The consortium wants a single, tamper-proof record of all trade transactions that auditors can query directly. Which approach best achieves this?

   • AHave each member email its transaction logs to the lead auditor on a monthly basis.
   • BCreate a centralized data warehouse that each member uploads its records to nightly.
   • CUse a public blockchain to record all transactions, including confidential trade details.
   • DBuild a permissioned blockchain where all members write transactions to a shared ledger, and give auditors read-only access to the ledger.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   In the logistics sector, what is a unique benefit of using blockchain?

   • AReal-time tracking of goods with a tamper-proof history
   • BReducing the weight of packages
   • CEliminating the need for warehouses
   • DAutomatic driving of delivery vehicles
   Reveal Solution Discussion Select an answer first