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試験312-82合格問題 &素晴らしい312-82出題内容 |大人気312-82テスト対策書
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誰もが良い仕事とまともな収入を望んでいます。 しかし、彼らが優れた能力と優れた主要な知識を持っていない場合、彼らはまともな仕事を見つけるのは難しいです。 EC-COUNCILテスト312-82認定に合格すると、夢を実現し、満足のいく仕事を見つけることができます。 312-82学習教材は、312-82のEC-Council Blockchain Fintech CertificationB|FC exam試験に簡単に合格するのに役立つ優れたツールです。 時間をかけて学習する必要はありません。 312-82試験ガイドは高品質であり、当社EC-COUNCILの製品を使用する場合、312-82試験に合格する可能性は99%〜100%と非常に高くなっています。
EC-COUNCIL 312-82 認定試験の出題範囲:
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試験の準備方法-高品質な312-82合格問題試験-真実的な312-82出題内容
312-82試験ガイドは、ビジネスマンであろうと学生であろうと、すべての人に適しています。試験に参加するには、20〜30時間で練習できます。あなたが素晴らしい成績をとれることは間違いありません。私たちの学習ペースに従えば、予想外の驚きがあります。当社の312-82ガイドトレントを選択した場合にのみ、この重要な試験に合格し、312-82試験の準備に関するまったく新しい経験を得ることが容易になります。
EC-COUNCIL EC-Council Blockchain Fintech CertificationB|FC exam 認定 312-82 試験問題 (Q21-Q26):
質問 # 21
A________in a new chain and requires clients to upgrade in order to participate on the new blockchain.
- A. Hard fork
- B. Sub chain
- C. Sharding
- D. Soft fork
正解:A
解説:
Ahard forkoccurs when there is a fundamental change in a blockchain's protocol, resulting in the creation of a new chain that is incompatible with the previous one. After a hard fork, nodes must upgrade to the new version of the blockchain's software to continue participating in the network. A hard fork can be used to implement new features, fix security issues, or change core aspects of the blockchain.
Key Details:
* Differences from Soft Forks: Unlike a soft fork, which is backward-compatible and allows nodes on the previous version to still participate, a hard fork splits the blockchain into two distinct paths, with the upgraded path requiring new software.
* Examples: Notable hard forks include Bitcoin Cash from Bitcoin and Ethereum Classic from Ethereum. These forks occurred due to disagreements within the community on how to handle certain protocol changes, leading to the creation of separate blockchains.
* Upgrade Requirements: Participants on the blockchain who wish to continue on the new chain after a hard fork must update their software. Those who do not upgrade remain on the original chain, which continues as a separate, incompatible blockchain.
Thus, the correct answer isHard fork (A), as it directly refers to a blockchain split that requires client upgrades for participation.
質問 # 22
These wallets store keys in a tree structure derived from a seed.
- A. Hierarchical Deterministic Wallets
- B. Non-Deterministic Wallets
- C. Brain Wallets
- D. Deterministic Wallets
正解:A
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 # 23
A____does not result in a new chain and does not require client nodes to upgrade.
- A. Dependent chain
- B. Side chain
- C. Hard fork
- D. Soft fork
正解:D
解説:
Asoft forkis a change to a blockchain protocol that is backward-compatible, meaning it does not result in the creation of a new chain and does not require all client nodes to upgrade. Nodes that do not upgrade can still participate in the network, although they may not have access to all new features introduced by the soft fork.
Key Details:
* Backward Compatibility: In a soft fork, updated nodes enforce the new rules, while non-updated nodes continue to follow the older protocol but remain part of the same blockchain. This contrasts with hard forks, where incompatibility leads to the creation of a new chain.
* Use Cases: Soft forks are commonly used to implement protocol upgrades or adjustments that do not fundamentally alter the structure of the blockchain, such as increasing block size limits or adding new features that are optional.
* Examples: An example of a soft fork is the Segregated Witness (SegWit) update on the Bitcoin blockchain, which was implemented to increase block capacity without splitting the chain.
Thus,B. Soft forkis the correct answer, as it refers to a backward-compatible update that does not require a new chain or mandatory upgrades from all nodes.
質問 # 24
What is a utility cryplet?
- A. A part of IBM Hyperledger Fabric Bletchley that is used to provide basic services such as encryption and basic data fetching from external sources.
- B. A part of Microsoft Azure Bletchley that is created automatically when a smart contract is created on the chain and resides of the chain.
- C. A part of IBM Hyperledger Fabric that is created automatically when a smart contract is created on the chain and resides off the chain.
- D. A part of Microsoft Azure Bletchley that is used to provide basic services such as encryption and basic data fetching from external sources.
正解:D
解説:
Autility crypletis a component of Microsoft Azure Bletchley that provides essential services, such as encryption and data retrieval from external sources, to support blockchain applications. Bletchley is a Microsoft Azure project designed to enhance blockchain infrastructure by offering middleware services and tools for secure and efficient blockchain solutions.
Key Details:
* Purpose of Utility Cryplets: Utility cryplets extend the functionality of blockchain networks by offering off-chain services, which include cryptographic operations, data encryption, and fetching information from external APIs or data sources. This enhances the capabilities of smart contracts by allowing them to securely interact with off-chain data.
* Microsoft Azure Bletchley: As part of Microsoft's blockchain ecosystem, Bletchley provides an environment that supports building, deploying, and managing blockchain applications. Cryplets are designed to facilitate secure, reliable, and scalable integration between on-chain and off-chain processes.
* Use Cases: Utility cryplets are particularly useful in scenarios where blockchain applications need to access external data (like price feeds, identity verification, etc.) while ensuring data integrity and security.
Therefore,B. A part of Microsoft Azure Bletchley that is used to provide basic services such as encryption and basic data fetching from external sourcesis the correct answer, as it describes the function and purpose of utility cryplets within the Azure Bletchley project.
質問 # 25
_______implements the interledger protocol, which facilitates interoperability across different distributed and non-distributed ledger networks.
- A. Cello
- B. Caliper
- C. Quit
- D. Composer
正解:C
解説:
The answer is(C) Quilt.
Hyperledger Quilt is a Java implementation of the Interledger Protocol (ILP). ILP is designed to transfer value across different ledgers, whether they are distributed ledgers (like blockchains) or traditional non-distributed ledgers.
Here's why the other options aren't the best fit:
* Composer:Hyperledger Composer was a tool for building blockchain applications, but it has been deprecated.
* Cello:Hyperledger Cello aims to provide a modular blockchain platform, making it easier to deploy and manage blockchain networks.
* Caliper:Hyperledger Caliper is a benchmarking tool used to measure the performance of different blockchain implementations.
Quilt's primary function is to enable interoperability between different ledger systems, which is crucial for the broader adoption and integration of blockchain technology.
質問 # 26
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