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Enterprise Blockchain Platforms Flashcards

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  1. Which Hyperledger project provides a modular blockchain framework specifically designed for enterprise permissioned networks?

    Answer: Hyperledger Fabric

    Hyperledger Fabric is the flagship modular, permissioned blockchain framework under the Hyperledger umbrella, designed for enterprise use cases with pluggable consensus and privacy features.

  2. In R3 Corda, what is the primary role of a 'Notary' node?

    Answer: Preventing double-spend by uniquely validating transaction inputs

    Notary nodes in Corda validate the uniqueness of transaction inputs, preventing double-spending without requiring global broadcast of transaction data.

  3. What consensus mechanism does Hyperledger Fabric use by default in its ordering service?

    Answer: Raft

    Hyperledger Fabric's default ordering service uses Raft, a crash fault-tolerant (CFT) consensus algorithm suitable for enterprise environments.

  4. Which enterprise blockchain platform is based on Ethereum but is optimized for private/permissioned deployments and is maintained by ConsenSys?

    Answer: Hyperledger Besu

    Hyperledger Besu is an Ethereum client maintained by ConsenSys (now also under Hyperledger) that supports both public Ethereum and private/permissioned networks.

  5. In Hyperledger Fabric, what is a 'Channel' used for?

    Answer: Creating a private subnet with its own ledger shared only among specific members

    Channels in Hyperledger Fabric create private communication subnets with their own ledger, allowing subsets of network members to transact privately.

  6. Which enterprise blockchain platform was originally developed by JP Morgan and later became part of the ConsenSys ecosystem?

    Answer: Quorum

    Quorum was originally developed by JP Morgan as a private, permissioned version of Ethereum, and was later acquired by ConsenSys.

  7. What is the purpose of the Membership Service Provider (MSP) in Hyperledger Fabric?

    Answer: Defining and verifying the identity of participants using PKI certificates

    The MSP in Hyperledger Fabric manages identities by defining which Certificate Authorities are trusted, enabling participant authentication and authorization.