Blockchain Developer - Hyperledger Fabric CBDH Syllabus Exam Questions Answers

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Question 16

In Hyperledger Fabric there is three types of chaincode. (Select three.)

Options:

Private

Hybrid

Access Controlled

Consortium

Public

Compliant

Question 17

Chaincode in Hyperledger Fabric is a decentralized transactional program which is running on the validating nodes. Chaincode implements the Chaincode interface in particular, Init and Invoke functions.

Which two statements about Chaincode is correct? (Select two.)

Options:

Init is called during instantiate transaction after the chaincode container has been established for the first time, allowing the chaincode to initialize its internal data

Invoke is called to update or query the ledger after a proposal transaction. Update state variables are committed to the ledger before the transaction is committed

Init is called during Instantiate transaction after the chaincode ledger has been established for the first time, allowing the chaincode to initialize its internal data

Invoke is called to update or query the ledger in a proposal transaction. Updated state variables are not committed to the ledger until the transaction is committed.