Enterprise Blockchain Platforms and Frameworks BBLC Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In a Hyperledger Fabric network, where is chaincode executed?

   • AOn the Certificate Authority
   • BOn the ordering service nodes
   • COn endorsing peers in isolated containers
   • DOn the client application
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A healthcare provider network uses Hyperledger Fabric to manage patient consent records. They need to update the business logic that validates consent changes without disrupting the running network. What is the recommended approach?

   • ADeploy a new peer and migrate all data to it
   • BModify the genesis block to include new transaction validation rules
   • CUpgrade the chaincode to a new version and endorse it according to the network's upgrade policy
   • DReplace the ordering service with a new one that supports the updated logic
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   When selecting an enterprise blockchain platform, which factor is most important for a regulated industry like healthcare?

   • AMining rewards
   • BRegulatory compliance and data privacy features
   • CPublic accessibility
   • DCryptocurrency integration
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A consortium of five banks wants to share know-your-customer (KYC) data for corporate clients. Each bank must see only the data for clients it has a relationship with, and all participants require a legally binding record of data updates. Which platform characteristic is most important for this use case?

   • AA centralized database with API access for each bank
   • BA permissionless network with smart contracts for automated data sharing
   • CA public blockchain with transparent transaction history for all participants
   • DA permissioned network with private data channels and a shared legal framework
   Reveal Solution Discussion Select an answer first
6. 10expert · hard

   A healthcare consortium is deploying Hyperledger Fabric to share patient records. They must comply with GDPR, which requires that patients can request deletion of their data. However, blockchain data is immutable. What is the most appropriate approach?

   • AStore all patient data on-chain and rely on encryption to protect it
   • BUse a public blockchain to ensure transparency and immutability
   • CUse a private blockchain and allow authorized administrators to delete transactions
   • DStore only hashes of patient data on-chain and keep the actual data in an off-chain database that can be deleted
   Reveal Solution Discussion Select an answer first