312-82 Dumps With Exact Questions and Answers

Hyperledger Fabricis designed to provide a foundation for developing blockchain solutions with a modular architecture. Fabric, a project under the Hyperledger umbrella by the Linux Foundation, offers flexibility through its pluggable components, enabling enterprises to tailor blockchain networks according to their specific requirements.

Key Details:

Modular Architecture: Hyperledger Fabric supports modular plug-ins for various functions, including consensus, identity management, and privacy settings. This allows organizations to customize the blockchain to suit their operational needs.

Permissioned Network: Fabric is a permissioned blockchain, meaning that it restricts network participation to authorized entities, which is ideal for enterprise use cases that require confidentiality and controlled access.

Enterprise-Grade Features: Fabric's architecture is well-suited for complex business processes, providing features like private data collections, which allow subsets of participants to create private channels for transactions.

Thus,B. FABRICis the correct answer, as it is specifically developed to support modular, enterprise-grade blockchain solutions.

Ethereumcurrently supports a transaction throughput of approximately10-14 transactions per second (TPS). This transaction speed is a result of Ethereum’s design, which balances decentralization and security, albeit at the cost of scalability. This TPS rate is consistent across the Ethereum network prior to its upgrade to Ethereum 2.0, which aims to increase scalability through sharding and Proof of Stake.

Key Details:

Limitations of Current Throughput: Ethereum’s TPS rate is due to limitations in its consensus mechanism (formerly Proof of Work, now Proof of Stake) and block size, which prioritize security over transaction speed.

Comparison with Other Networks: Bitcoin, for example, supports around 3-7 TPS, while other networks like Solana or Binance Smart Chain support significantly higher TPS. Ethereum’s TPS may increase as Ethereum 2.0 is fully implemented, which aims to improve its scalability.

Impact on Decentralized Applications (DApps): Ethereum’s transaction capacity impacts DApps running on the network, as higher usage can lead to congestion and increased transaction fees(gas fees). The upcoming upgrades are intended to alleviate these issues and enhance performance.

Therefore,D. Ethereumis the correct answer, as it supports approximately 10-14 TPS in its current form.

The UTXO (Unspent Transaction Output) model establishes a chain of ownership by using digital signatures. In this model, each transaction consists of inputs (from previous UTXOs) and outputs (new UTXOs), and ownership is transferred by the current owner signing the transaction. This digital signature is then verified by the recipient, ensuring a secure and traceable chain of ownership.

Key Details:

Functionality of UTXO: UTXO is a fundamental part of Bitcoin’s transaction model. When a transaction occurs, it consumes previous outputs as inputs, generating new UTXOs. Each UTXO can only be spent once, and ownership is verified through cryptographic signatures.

Chain of Ownership: The UTXO model inherently creates a clear and verifiable chain of ownership, as each output is signed by the current owner and used as input for future transactions, maintaining a continuous and transparent record of asset transfers.

Security through Digital Signatures: UTXO-based transactions rely on digital signatures to authenticate and authorize asset transfers, ensuring that only the rightful owner can initiate a transaction.

Thus, D. UTXO is the correct answer, as it accurately describes the model where ownership is established through a chain of digital signatures.