ECCouncil 312-82 - EC-CouncilBlockchain Fintech CertificationB|FC exam

The primary benefit of blockchain in the healthcare industry for patients istotal control over personal health records. Blockchain enables secure, decentralized storage of health data, allowing patients to control access to their information and share it with healthcare providers as needed.

Key Details:

Data Ownership and Privacy: Blockchain gives patients the ability to own and manage their health records. They can grant or revoke access to different healthcare providers, ensuring that only authorized personnel have access to their data.

Improved Security: Health records stored on a blockchain are encrypted and decentralized, making them resistant to tampering and unauthorized access. This enhances patient privacy and reduces the risk of data breaches.

Interoperability and Accessibility: Blockchain facilitates seamless sharing of health records across different healthcare providers and systems, improving coordination and care continuity without compromising data integrity.

Therefore,B. Total control over personal health recordsis the correct answer, as it represents a significant advantage for patients in managing their healthcare information securely.

Ethereum uses Ethashas its Proof of Work (PoW) algorithm, whileBitcoin uses SHA-256for its PoW algorithm. Both are used to secure their respective networks, but they differ in terms of computational complexity and memory requirements.

Key Details:

Ethash (Ethereum): Ethash is a memory-hard hashing algorithm designed to be resistant to ASIC mining, favoring GPU miners instead. It requires substantial memory, which helps to ensure a higher degree of decentralization.

SHA-256 (Bitcoin): Bitcoin’s SHA-256 is a highly secure hashing algorithm that supports ASIC mining. It is computationally intensive but less memory-demanding compared to Ethash.

Purpose in PoW: Both algorithms enable miners to validate transactions and secure the network by solving complex puzzles. Ethash's design helps Ethereum maintain a decentralized network, whereas SHA-256 allows Bitcoin to achieve high levels of security with specialized mining equipment.

Therefore,D. ETHASH SHA-256is the correct answer, as these are the specific PoW algorithms used by Ethereum and Bitcoin, respectively.

Hyperledger Fabricis a widely used enterprise blockchain framework developed under the Linux Foundation's Hyperledger project. It is designed to support various industries by offering a modular architecture, which enables enterprises to create customized blockchain solutions that meet specific business requirements.

Key Details:

Enterprise Application: Hyperledger Fabric is suitable for use cases requiring privacy and confidentiality, such as supply chain management, healthcare, and finance. It supports permissioned networks where only authorized participants can join.

Modularity and Flexibility: Fabric's modular design allows organizations to plug in their preferred components for consensus, membership, and data storage. This makes it versatile across different industries and applications.

Smart Contracts and Chaincode: Fabric supports smart contracts, called chaincode, which enable complex business logic to be executed on the blockchain, providing significant utility to enterprises.

As a result,A. Hyperledger Fabricis the correct answer, as it is a leading enterprise blockchain framework used across multiple sectors.

According to studies conducted by Deloitte and other industry research, blockchain offers several benefits for the insurance industry, particularly inmore efficient claims processingandlower costs. Blockchain’s capabilities in data immutability, transparency, and automation play key roles in streamlining insurance processes and reducing operational expenses.

Key Details:

Efficient Claims Processing: Blockchain enables quicker verification and processing of claims by automating workflows through smart contracts. This reduces paperwork, minimizes errors, and speeds up the claims process, improving customer satisfaction.

Lower Costs: By reducing intermediaries and leveraging automation, blockchain lowers administrative costs. It minimizes the need for manual verification and fraud detection, which traditionally consume significant resources in the insurance industry.

Transparency and Fraud Reduction: Blockchain provides an immutable and transparent record of all transactions. This helps prevent fraud, as all stakeholders have access to the same data, reducing discrepancies and the need for extensive audits.

In conclusion,A. More efficient claims processingandD. Lower costsare the correct answers, as these are key benefits of blockchain for the insurance industry identified in Deloitte’s research.

Hierarchical Deterministic (HD) Walletsare wallets that generate private and public keys in a tree structure, starting from a single seed phrase. This seed phrase can generate multiple key pairs, allowing users to back up and recover all their wallet addresses using one phrase, which enhances security and convenience.

Key Details:

Tree Structure: HD wallets use a root seed to derive an entire hierarchy of keys. Each branch in the tree can create new sub-branches, generating separate addresses for different transactions without reusing them, which provides better privacy.

Seed-Based Recovery: Users can restore all wallet addresses with the original seed phrase, making HD wallets more secure and easy to back up compared to non-deterministic wallets, which would require individual backups for each key.

Compatibility with Blockchain Standards: HD wallets adhere to the BIP32 and BIP44 standards, which outline the derivation paths and formats used by these wallets. This compatibility allows for interoperability among different wallet providers.

In conclusion, Hierarchical Deterministic Wallets (answer B) best describes wallets that store keys in a tree structure derived from a seed.