Chaincode Development, Deployment, and Lifecycle Management BDC Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   What is the purpose of the 'install' step in the Hyperledger Fabric chaincode deployment process?

   • ATo define the endorsement policy for the chaincode
   • BTo register the chaincode with the ordering service
   • CTo initialize the chaincode's state on the ledger
   • DTo place the chaincode package on a peer so it can endorse transactions
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   In Hyperledger Fabric chaincode, how can developers output log messages for debugging?

   • ABy writing log messages to the ledger state
   • BBy sending log messages to the ordering service
   • CBy using the logging module provided by the chaincode SDK (e.g., 'fmt.Println' or 'log.Printf' in Go)
   • DBy using the 'logger' function from the Fabric CA
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A chaincode has been running for months. The endorsement policy is currently set to require signatures from two specific organizations. The network now wants to add a third organization to the endorsement policy. What is the correct way to update the endorsement policy?

   • ACreate a new chaincode definition with the updated endorsement policy and go through the lifecycle approval and commit process.
   • BReinstall the same chaincode package with a new endorsement policy.
   • CModify the channel configuration to change the endorsement policy.
   • DUse the peer CLI to update the endorsement policy on the fly without changing the chaincode version.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   What is a common approach to unit testing Hyperledger Fabric chaincode?

   • ADeploying the chaincode to a production network and invoking it with test data
   • BWriting a script that manually inspects the ledger state after each transaction
   • CUsing the Fabric SDK to call the chaincode from an external application
   • DUsing the mockstub package to simulate the chaincode stub interface
   Reveal Solution Discussion Select an answer first
6. 15application · medium

   An organization wants to ensure that all chaincode upgrades are reviewed and approved by a designated security team before they are deployed to the production channel. What operational practice should be implemented?

   • ARequire the security team's signature as part of the chaincode approval process in the Fabric lifecycle.
   • BRely on the peer's logging to detect unauthorized upgrades after they occur.
   • CRestrict the ability to install chaincode to a single admin user.
   • DUse a script that automatically approves any chaincode package that passes unit tests.
   Reveal Solution Discussion Select an answer first