Blockchain Deployment and Monitoring Tools BDC Practice Questions (Page 3)

Questions 11–15

1. 11application · easy

   A developer is setting up a new Hyperledger Fabric network for development. They need to generate the cryptographic material (certificates) for the orderer and peer nodes. Which tool should they use?

   • Acryptogen
   • Bpeer channel
   • Cconfigtxgen
   • DFabric CA client
   Reveal Solution Discussion Select an answer first
2. 12expert · hard

   A regulated financial institution runs a permissioned blockchain and must ensure that monitoring data is retained for audit purposes. They also need to detect consensus anomalies, such as a validator proposing blocks with invalid timestamps. Which combination of monitoring practices best satisfies both requirements?

   • ASet up alerts for high CPU usage and retain system logs for 90 days
   • BStore Prometheus metrics for 7 days and enable detailed logging for all consensus messages with a 1-year retention policy
   • CStore all metrics indefinitely and disable logging to reduce storage costs
   • DUse a block explorer to record all transactions and retain it for 30 days
   Reveal Solution Discussion Select an answer first
4. 13application · medium

   A team is about to perform a scheduled network upgrade on a Hyperledger Fabric channel. The upgrade changes the endorsement policy for an existing chaincode. What is the correct sequence of steps?

   • AStop all peers, upgrade the chaincode, and restart the peers without changing the channel configuration
   • BDeploy a new chaincode package with a new version and let the peers automatically adopt it
   • CUpgrade the chaincode on all peers, then update the channel configuration with the new endorsement policy
   • DUpdate the channel configuration first, then upgrade the chaincode on each peer
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   A developer must deploy a smart contract to a public Ethereum network. The contract has a constructor that requires an initial owner address. The developer wants to ensure the deployment is verifiable and that the owner address is not exposed in the source code. Which approach is most appropriate?

   • AUse a deployment script that reads the owner address from an environment variable and verify the contract on Etherscan
   • BDeploy the contract using a multi-signature wallet to avoid specifying an owner
   • CHardcode the owner address in the contract and deploy it
   • DDeploy the contract without verifying it to keep the source private
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   What is a 'fork' in the context of blockchain network deployment and management?

   • AA type of node that validates transactions
   • BA method for encrypting node communications
   • CA split in the blockchain into two separate chains with different rules
   • DA tool used to deploy smart contracts
   Reveal Solution Discussion Select an answer first