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Query is called whenever you query your chaincode's state. Queries do not result in blocks being added to the chain, and you cannot use certain functions. Which function can you not use inside a Query?
An_____________ is defined as a communication node that is responsible for the distribution of blockchain transactions in Hyperledger Fabric.
You would like to download Hyperledger Fabric. What would be the command to start the process?
Which of the following syntaxes will compile the chaincode?
The fastest way to test your chaincode is to use the REST interface on your peers. There are several REST endpoints you can test and interact with chaincode. (Select two.)
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.)
Hyperledger Composer has the following two main components.
What Hyperledger sponsored tool is a new open-source application development framework, which simplifies the creation of Hyperledger Fabric blockchain applications, thus reducing the time and complexity of development. The tool aims at helping users to create blockchain applications based on Hyperledger Fabric without needing to know the low-level (Go Programming) details involved in blockchain networks?
_____________________________provide identity, privacy, and confidentiality to the network and is an abstraction of an architecture for permissioned operations.
Hyperledger Fabric includes a ____________-based service for ordering and broadcasting network transactions. This service also provides crash fault tolerance to your network; meaning that if an accepted number of ordering service nodes are unavailable, the service continues to order and distribute blocks of transactions to channel peers. What is the service based on?

Question 76 - CBDH discussion

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There are two popular approaches to defining assets in most blockchain solutions. (Select two.)

A.
Stateless UTXO model, where account balances are encoded into past transaction records.
Answers
A.
Stateless UTXO model, where account balances are encoded into past transaction records.
B.
Account model, where account balances are kept in state storage space in memory registers.
Answers
B.
Account model, where account balances are kept in state storage space in memory registers.
C.
Stateful UTXO model, where account balances are encoded into past transaction records.
Answers
C.
Stateful UTXO model, where account balances are encoded into past transaction records.
D.
Account model, where account balances are kept in stateless storage space on the ledger.
Answers
D.
Account model, where account balances are kept in stateless storage space on the ledger.
E.
Stateless UTXO model, where account balances are encoded into current transaction records.
Answers
E.
Stateless UTXO model, where account balances are encoded into current transaction records.
F.
Account model, where account balances are kept in state storage space on the ledger.
Answers
F.
Account model, where account balances are kept in state storage space on the ledger.
Suggested answer: A, F

Explanation:

Users can use chaincode (for business rules) and membership service (for digital tokens) to design assets, as well as the logic that manages them. There are two popular approaches to defining assets in most blockchain solutions: the stateless UTXO model, where account balances are encoded into past transaction records; and the account model, where account balances are kept in state storage space on the ledger. Each approach carries its own benefits and drawbacks. This blockchain fabric does not advocate either one over the other. Instead, one of our first requirements was to ensure that both approaches can be easily implemented with tools available in the fabric.

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asked 16/09/2024
Jean-Bosco Muganza
38 questions
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