Practice Test GeeksCBDH - Certified Blockchain Developer Hyperledger Practice Test
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Network Design & Administration Flashcards

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  1. Which Kubernetes resource is best for Fabric peers that need stable identity and persistent storage?

    Answer: StatefulSet with PersistentVolumeClaims

    StatefulSets give stable network IDs and persistent volumes for ledger data.

  2. Which consensus algorithms are available for a private Hyperledger Besu network?

    Answer: IBFT 2.0, QBFT and Clique

    Besu supports permissioned consensus such as IBFT 2.0, QBFT and Clique.

  3. In Hyperledger Sawtooth, which component executes business logic for a transaction family?

    Answer: Transaction processor

    Transaction processors implement the logic for a transaction family, while the validator handles consensus and state.

  4. What is Hyperledger Cello designed for?

    Answer: Blockchain-as-a-service: deploying and managing blockchain networks

    Cello provides on-demand deployment and lifecycle management of blockchain networks.

  5. Which feature exposes Prometheus metrics and health checks on a Fabric peer or orderer?

    Answer: The operations service

    The operations endpoint provides /metrics, /healthz and logging controls.

  6. What does Fabric service discovery provide to client applications?

    Answer: Information on peers, orderers and endorsement plans for a channel

    The discovery service tells clients which peers to use to satisfy endorsement policies.

  7. What is the purpose of channel capabilities in Fabric?

    Answer: To make sure all nodes on a channel run compatible, same-level features

    Capabilities ensure nodes process transactions consistently, and nodes lacking a required capability will not join.

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Sources & references

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  1. blockchaintrainingalliance.com — Test delivery, passing score, score release, test dates, fees, exam format, time limit · verified Oct 2026