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EC-COUNCIL 312-82日本語版参考資料: EC-Council Blockchain Fintech CertificationB|FC exam - CertJuken製品は短時間で試験の準備をします

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EC-COUNCIL EC-Council Blockchain Fintech CertificationB|FC exam 認定 312-82 試験問題 (Q14-Q19):

質問 # 14
These wallets store keys in a tree structure derived from a seed.

• A. Deterministic Wallets
• B. Brain Wallets
• C. Hierarchical Deterministic Wallets
• D. Non-Deterministic Wallets

正解：C

解説：
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.

質問 # 15
The financial Action Task force defines virtual asset providers as companies that (choose two):

• A. Sell products for virtual currency
• B. Exchange virtual assets for fiat currency
• C. Transfer virtual assets
• D. Purchase virtual currency

正解：B、C

解説：
TheFinancial Action Task Force (FATF)definesVirtual Asset Service Providers (VASPs)in its guidelines to include entities that engage in theexchange of virtual assets for fiat currencyand thetransfer of virtual assets. This categorization is part of the FATF's efforts to regulate and monitor the flow of virtual assets to mitigate risks associated with illicit activities.
Key Details:
* Exchange and Conversion Services: FATF recognizes companies that offer exchange services between virtual assets and fiat currencies as VASPs. These services are critical for converting virtual assets into forms that can be readily used in traditional markets.
* Transfer Services: VASPs that facilitate the transfer of virtual assets are also within the FATF's regulatory scope. This includes services that manage, transfer, or act as intermediaries in the movement of virtual assets between users, ensuring these transactions are conducted transparently and within regulatory frameworks.
Therefore,C. Exchange virtual assets for fiat currencyandD. Transfer virtual assetsare the correct answers, as they align with the FATF's definition of VASPs.

質問 # 16
_______is a word use to describe technologies which store, distribute and facilitate the exchange of value between users, either privately or publicly

• A. DLT
• B. Blockchain
• C. Ledger
• D. DAO

正解：A

解説：
Distributed Ledger Technology (DLT)is a broad term used to describe technologies that store, distribute, and facilitate the exchange of value between users, either privately or publicly. DLTencompasses various types of ledgers, including blockchains, where data is replicated, shared, and synchronized across a distributed network.
Key Details:
* Definition and Scope: DLT refers to a digital system for recording transactions across multiple locations simultaneously. It allows for decentralized data management and reduces the need for a central authority to maintain a ledger.
* Private and Public Ledgers: DLT can be implemented in both private (permissioned) and public (permissionless) networks. In public DLT, anyone can participate, while private DLT restricts access to authorized participants only.
* Examples of DLT: Blockchain is one form of DLT, but other types include Directed Acyclic Graphs (DAGs) and Hashgraph. Each of these has unique mechanisms for data storage and consensus.
Therefore,C. DLTis the correct answer, as it is the term that broadly covers technologies used for the exchange and storage of value in distributed systems.

質問 # 17
What is the term for the smallest subunit in Ether.

• A. Bitcoin
• B. ETH
• C. Gas
• D. Wie

正解：D

解説：
The smallest subunit of Ether is called aWei. Ether (ETH) is divided into several subunits for precision in transactions, with Wei being the smallest, equivalent to 10#1810