Online Access Free HFCP Exam Questions

When using "off-line signing" in the Fabric Gateway client API, what information from each message is used to generate the cryptographic signature?

• A.The client X.509 certificate
• B.The message digest
• C.The transaction ID
• D.The transaction validation code

A smart contract can call other smart contracts both within the same channel and across different channels.
Which of the following transactions is inter-contract communication whose functionality is limited?

• A.Chaincode X calls Getstate in Chaincode Y on the same channel.
• B.Chaincode X calls Putstate in Chaincode Y on the same channel.
• C.Chaincode X calls Putstate in Chaincode Y on a different channel.
• D.Chaincode X calls Getstate in Chaincode Y on a different channel.

What is the advantage of using state-based endorsement policy over a chaincode or collection level endorsement policy?

• A.It provides a way to set endorsement policy for multiply keys with one chaincode configuration update.
• B.It can be used without complex configuration transactions, only a JSON configuration file is needed.
• C.It provides a way to set endorsement policy on a global Hyperledger Fabric farm level with one configuration
• D.It provides fine-tuned endorsement policy on key level, update is possible without chaincode update

In Hyperledger Fabric, Intercommunication is how a smart contract in a channel updates the World State database. It is achieved by what process?

• A.Making use of the cross channel Consensus mechanism.
• B.Configuring the Peer-to-peer endorsement options.
• C.Calling smart contracts within the channel and in different channels.
• D.Setting the endorsement policy to communicate with all peers.

In a production environment, what peer items require on-going monitoring?

• A.Only the chaincode containers since they handle the business logic.
• B.Only the orderer service since it manages the ordering of transactions.
• C.All peer containers, including their CPU, network, and memory.
• D.Onlythe peer nodes that are runningchaincode, since they consume most resources.