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What types of events committed to the ledger can client applications receive using the peer's event service?
What types of events committed to the ledger can client applications receive using the peer's event service?A . Only block eventsB . Both chaincode and block eventsC . Neither chaincode nor block eventsD . Only chaincode eventsView AnswerAnswer: B Explanation: In Hyperledger Fabric, client applications can subscribe to receive both...
After the transaction that contains the delState("A") function is committed, what happens to the ledger and state database?
After the transaction that contains the delState("A") function is committed, what happens to the ledger and state database?A . getstate("A") function returns the current state of the key "A".B . The deleting transaction sets an empty value to the key "A" in the write set.C . The state of the...
Which of the following is the correct role of orderer nodes?
Which of the following is the correct role of orderer nodes?A . Order and package endorsed transactions into a block.B . Order new tokens from the token issuer.C . Order peers to endorse a transaction.D . Reorder stored blocks to compress data volume.View AnswerAnswer: A Explanation: The primary role of...
An endorsement policy lists what?
An endorsement policy lists what?A . The number of organizations involved in a transaction.B . The number of peers needed to endorse a transaction.C . The order in which transactions are executed.D . The identities required for endorsing a transaction.View AnswerAnswer: D Explanation: In Hyperledger Fabric, an endorsement policy specifies...
Which of the following is the identity solution in Hyperledger Fabric?
Which of the following is the identity solution in Hyperledger Fabric?A . Hyperledger Fabric OrdererB . Hyperledger Fabric CAC . Hyperledger Fabric SDKD . Membership Service ProvidersView AnswerAnswer: D Explanation: In Hyperledger Fabric, the identity solution that manages user identities and authenticates participants on the network is facilitated by Membership...
How can the client application access descriptive error text for each of the endorsing peers following a transaction endorsement failure?
How can the client application access descriptive error text for each of the endorsing peers following a transaction endorsement failure?A . Extract relevant entries from the endorsing peer logs.B . Examine the message of the associated cause or wrapped error.C . Look up the gRPC status code for the error.D...
How would a developer iteratively test and develop a smart contract without the overhead of the smart contract lifecycle process for every update?
How would a developer iteratively test and develop a smart contract without the overhead of the smart contract lifecycle process for every update?A . Running chaincode for Smart Contracts in development mode.B . Manually update the Smart Contract code on the network.C . Deploy the Smart Contract on the network...
What gRPC status code might you expect to be associated with an error invoking a transaction as a result of a transient failure, such as a network disconnection between the client application and Gateway peer?
What gRPC status code might you expect to be associated with an error invoking a transaction as a result of a transient failure, such as a network disconnection between the client application and Gateway peer?A . UNAVAILABLEB . ABORTEDC . DEADLINE EXCEEDEDD . FAILED PRECONDITIONView AnswerAnswer: A Explanation: The gRPC...
In Hyperledger Fabric, Intercommunication is how a smart contract in a channel updates the World State database. It is achieved by what process?
In Hyperledger Fabric, Intercommunication is how a smart contract in a channel updates the World State database. It is achieved by what process?A . Setting the endorsement policy to communicate with all peers.B . Configuring the Peer-to-peer endorsement options.C . Calling smart contracts within the channel and in different channels.D...
How would a developer iteratively test and develop a smart contract without the overhead of the smart contract lifecycle process for every update?
How would a developer iteratively test and develop a smart contract without the overhead of the smart contract lifecycle process for every update?A . Running chaincode for Smart Contracts in development mode.B . Manually update the Smart Contract code on the network.C . Deploy the Smart Contract on the network...
