CBDH Blockchain BTA Certified Blockchain Developer – Hyperledger Free Practice Exam Questions (2025 Updated)

Values can be assigned to any field variable A CTO file consists of:

● A single namespace, in which all resource declarations are implicitly.

● The overall “model” defines the representation of assets.

● A set of resource definitions that includes assets, transactions, participants, and events.

● Values may be assigned to any field variable.

● The option to import resources from other namespaces.

● When using composer modeling language, the words “asset” and “participant” are reserved.

● Asset ownership instance is defined in a relationship field. (symbol: o)

● The modeling language does not support multiple inheritance.

The REST server uses a business network card specified during startup to connect to and discover the assets, participants, and transactions within a deployed business network. This information visibility is required in order to generate the REST API. This business network card is known as the discovery business network card. By default, the discovery business network card is also used to handle all requests to the REST API.

Decentralized Autonomous Organization (DAO) can be thought of as a corporation run without any human involvement under the control of an incorruptible set of business rules. A DAO can also be seen as the most complex form of a smart contract, where the bylaws of the decentralized organization are embedded into the code of the smart contract, using complex token governance rules.

Gossip Protocol The gossip data dissemination protocol performs three functions Manages peer discovery and channel membership Disseminates ledger data across all peers on the channel Syncs ledger state across all peers on the channel.

References:

Reputation Manager is part of the MSP Membership services provide identity, privacy, and confidentiality to the network. Basic access to the network is determined through the role of the member, who may all have separate legal and/or independent entities. Depending on the network, different authentication schemes are used for assigning identity. For transacting, the participants must obtain identities. The Reputation Manager enables auditors to view transactions pertaining to a participant, providing that each auditor has been granted proper access authority, based on the role of the participants.

Explanation

Representation of current state of the assets. Asset state data can be changed upon changes to the state of the data. • Transaction Logs: Record of all the transactions (in the order they are received) which modified the state data, and once the data is written it is immutable and cannot be changed.

It has a modular subsystem design so that different implementations can be plugged in and implemented over time. Modular and extensible means modularity in all components of all frameworks, including: Consensus layer Smart contract layer Communication Layer Data Store Identity services (root of trust, to identify the participants).

Chaincode Interface is required and supports Go, Node.js or Java.

References:

The security module works in conjunction with the membership service module to provide access control service to any data recorded and business logic deployed on a chain network.

Explorer can view, invoke, deploy or query blocks, transactions and associated data, network information, chain codes and transaction families, as well as other relevant information stored in the ledger. Powerful, easy-to-use, highly maintainable, open source browser for viewing activity on the underlying blockchain network.

Hyperledger Fabric provides a Node.js and a Java SDK to facilitate network communications functionality.