Free Hyperledger Fabric Certified Practitioner Exam HFCP Exam Practice Test

In Hyperledger Fabric, what data structures manage sensitive information between organizations?

• Private data collections
• State database
• Ordering service
• Endorsement policies

Which concept of the RAFT ordering service relates to the ingestion of new log entries; their replication to other ordering nodes; and managing when an entry is considered committed?

• Consenter set
• Endorsement
• Quorum
• Leader

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

• The message digest
• The client X.509 certificate
• The transaction validation code
• The transaction ID

How should private data collection be configured and deployed?

• Private data collection is configured and deployed with the help of a dedicated REST API that is available on the orderers.
• Private data collection configuration is setup at the core network structure configuration with the components.
• Private data collection is configured at the X5C9 certification generation process of the certificate authorities.
• Private data collection configuration is described in a separate ison file and deployed at chaincode deployment.

What is necessary for a chaincode to become ready to commit on a channel?

• The chaincode must be previously installed on the channel’s peers.
• The policy Channel/Application/Writers must be satisfied.
• The policy /Channel/Application/LifecycleEndorsement must be satisfied.
• The chaincode must have the endorsement policies correctly defined.

What should be taken into account at implementing efficient CouchDB queries from chaincode?

• Using OLAP (Online analytical processing) and Cube functionality of CouchDB is enough to implement efficient queries.
• Using complex indexes for certain columns is enough even if full scan operators like $or, $in and
• $regex are used.
• Using indexes, focusing on simple queries and avoiding full index scans like with operators $or, $in
• and $regex.
• Using advanced relational algebra and SQL query language options of CouchDB is enough to implement efficient queries.

In Hyperledger Fabric a transaction is initiated where?

• Endorser
• IPeer
• Client
• Orderer

What is the purpose of the ordering service in Hyperledger Fabric model?

• To endorse transactions and update the world state.
• To manage the identities of the participants in the network
• To assemble transactions into blocks for the blockchain ledqer.
• To validate transactions and maintain the blockchain ledqer

When deploying an Orderer environment, variables must be customized or overridden in which artifact?

• crypto-config.yaml
• docker-compose.yaml
• configtx.yaml
• orderer.yaml

Regarding peer lifecycle chaincode, which of the following is the incorrect (unsupported) subcommand for query?

• peer lifecycle chaincode querypackaged
• peer lifecycle chaincode querycommitted
• peer lifecycle chaincode queryapproved
• peer lifecycle chaincode queryinstalled