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Implementation & Configuration Flashcards

7 cards from real CBDH practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Implementation & Configuration flashcards as text

  1. In Go chaincode, which call writes a key-value pair to the world state?

    Answer: stub.PutState

    PutState adds the write to the transaction's read-write set for the given key.

  2. Where must CouchDB index definitions be placed inside a chaincode package?

    Answer: META-INF/statedb/couchdb/indexes

    Indexes are JSON files under META-INF/statedb/couchdb/indexes and are deployed on chaincode install.

  3. Which command lists installed chaincode packages and their package IDs?

    Answer: peer lifecycle chaincode queryinstalled

    queryinstalled returns the package ID needed for the approveformyorg step.

  4. What does the --init-required flag do when approving chaincode?

    Answer: Requires Init to be invoked before other functions

    It makes the chaincode require an Init call with --isInit before regular invocations are allowed.

  5. Which MSP folder holds an identity's public signing certificate?

    Answer: signcerts

    signcerts contains the identity's certificate while keystore holds the private key.

  6. Which setting tells a peer which peers to contact first to join the gossip network?

    Answer: CORE_PEER_GOSSIP_BOOTSTRAP

    The gossip bootstrap list gives initial peers used to discover the rest of the organization.

  7. Which orderer BatchSize parameter caps the number of transactions in a block?

    Answer: MaxMessageCount

    MaxMessageCount sets the maximum transactions per block, and a block is also cut on timeout or size limits.

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