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What do we call the ordering nodes actively participating in the consensus mechanism for a given channel and receiving replicated logs for the channel?
In Hyperledger Fabric, the ordering nodes that are actively participating in the consensus mechanism for a given channel are referred to as the 'Consenter set.' These nodes are part of the ordering service and are responsible for creating blocks by ordering transactions and ensuring consistency across the network. The Consenter set receives the transaction logs that need to be replicated across other orderers and peers in the network. This is distinct from the 'Committer set,' which comprises nodes that commit blocks to their ledger, and 'Endorsers,' which are responsible for endorsing transactions by checking them against the chaincode execution policies.
Which of the following is the correct role of orderer nodes?
The primary role of orderer nodes in Hyperledger Fabric is to order and package endorsed transactions into blocks. Orderers receive transactions from various peers, ensure that these transactions are in a consistent order, and then package them into blocks that are subsequently appended to the blockchain. This function is crucial for maintaining the consistency and integrity of the ledger across all participating nodes. Orderer nodes do not issue tokens, enforce peer endorsements, or reorder stored blocks for data compression. Instead, their main function is integral to the consensus and ledger maintenance processes within a Hyperledger Fabric network
Which pluggable component in the Hyperledger Fabric modular architecture is responsible for identities?
In Hyperledger Fabric's modular architecture, the Membership Service Provider (MSP) is the pluggable component responsible for handling identities. The MSP abstracts the identity validation and authentication processes, allowing organizations to implement their preferred identity services while maintaining interoperability within the network. It defines the rules by which identities are validated, issued, and revoked. This component is essential for the permissioned nature of Hyperledger Fabric, ensuring that only authorized participants can execute specific actions on the network.
Where would you generate a unique ID to represent an asset on the ledger?
In Hyperledger Fabric, a unique ID to represent an asset on the ledger is typically generated in the client application before the transaction is submitted to the blockchain. This approach ensures that each asset has a unique identifier, which is crucial for tracking and managing assets throughout their lifecycle on the ledger.
When creating a gRPC connection to the Gateway peer using Transport Layer Security (TLS), what information must be supplied by the client application?
When creating a gRPC connection to the Gateway peer in Hyperledger Fabric using Transport Layer Security (TLS), the client application must supply the endpoint address of the Gateway peer and the certificate of the TLS certificate authority. This configuration is essential to establish a secure communication channel. The endpoint address specifies where the Gateway peer is located, which the client uses to connect. The certificate of the TLS certificate authority is crucial for validating the identity of the Gateway peer, ensuring that the connection is secure and that the data being transmitted is encrypted. This setup helps prevent man-in-the-middle attacks and ensures that sensitive data remains confidential during transmission.
