Question 1
A consortium of financial institutions wants to build a distributed ledger for trade finance. Their primary requirements are strict data privacy where only parties involved in a transaction can view its details, and the absence of a volatile native cryptocurrency. Which blockchain platform is architecturally designed around a 'need-to-know' data distribution model rather than a global broadcast channel?
Correct Answer:
Corda
Question 2
In the architecture of Hyperledger Fabric, what is the specific and crucial role of the 'Ordering Service'?
Correct Answer:
To establish a total order of transactions and package them into blocks to be distributed to peers.
Question 3
A public blockchain is struggling with high transaction fees and slow confirmation times due to network congestion. The development team decides to implement 'sharding' as a long-term scalability solution. What is the primary principle behind sharding?
Correct Answer:
Partitioning the network's state and transaction processing load across multiple parallel sub-chains.
Question 4
A development team needs to build a decentralized application (dApp) that can transfer a specific token from the Ethereum network to the Avalanche network without using a centralized intermediary. Which type of technology is specifically designed to facilitate this kind of cross-chain asset transfer and communication?
Correct Answer:
An interoperability protocol or cross-chain bridge
Question 5
In the context of a modular blockchain architecture, such as the one Ethereum is migrating towards, which layer is primarily responsible for processing transactions, executing smart contract code, and managing changes to the blockchain's state?
Correct Answer:
Execution Layer
Question 1
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About this Exam

Prepare with the Blockchain Developer Certification Exam practice quiz. This question bank includes 60 questions covering blockchain, primary, transaction, block, and consensus. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Blockchain Developer Certification Exam

This practice set contains 60 questions from the matching question bank and focuses on blockchain, primary, transaction, block, and consensus. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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