How would a developer iteratively test and develop a smart contract without the overhead of the smart contract lifecycle process for every update?
Answer(s): A
For developers looking to iteratively test and develop smart contracts in Hyperledger Fabric without the overhead of the full lifecycle process for each update, the recommended approach is to run the chaincode in development mode. This mode allows developers to test and debug chaincode directly on their machines without having to package, install, approve, and commit changes on the network each time. Development mode simplifies the iterative development process by allowing direct interaction with the chaincode during its development, making it easier to make and test changes quickly and efficiently. This contrasts with other methods that involve manual updates, redeployments, or using a production network, all of which are more time-consuming and complex.
Which of the following information do signature policies provide when creating a network in Hyperledger Fabric?
In Hyperledger Fabric, signature policies specify the identities of specific users who must sign a transaction for it to be considered valid. These policies define the endorsement rules associated with a chaincode and are a critical component of the transaction flow. They ensure that transactions are endorsed by the correct entities as stipulated by the governance of the network. Signature policies are not related to the number of nodes, private keys of participants, or the type of consensus algorithm used but are strictly about defining which users or member organizations' signatures are required to fulfill transaction criteria.
What is true about the historic states in Hyperledger Fabric model?
Answer(s): C
Historic states in the Hyperledger Fabric ledger are immutable, meaning they cannot be altered after they have been committed to the ledger. This immutability ensures the integrity and traceability of all transactions on the network. Once a transaction is recorded, it is permanent, and its history can be audited to trace back all operations affecting any piece of data. This feature is fundamental in blockchain technology, providing a verifiable and tamper-evident record. The immutability of historic states is a key component of the trust and security model in Hyperledger Fabric, contrary to options that suggest these records can be modified or are inaccessible.
In Hyperledger Fabric, Intercommunication is how a smart contract in a channel updates the World State database. It is achieved by what process?
Intercommunication in Hyperledger Fabric regarding how smart contracts update the World State database is primarily achieved by calling other smart contracts, both within the same channel and across different channels. This process allows smart contracts, also known as chaincode, to interact and transact across the network, updating the World State as necessary based on business logic defined in the contracts. This capability is crucial for complex business processes that span multiple contracts and possibly multiple channels. Unlike setting endorsement policies or configuring peer-to- peer options, calling other smart contracts directly facilitates dynamic and direct interaction between business processes, enhancing the modularity and efficiency of the network. Cross-channel communication must be carefully managed within the permissions and policies defined in the network to maintain security and integrity.
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PC commented on October 26, 2024 Good content Anonymous upvote
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