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A Type II DAPP is categorized by its______A . Using the protocol of a type II DAppB . Using the blockchain and protocol of a type IC . Using another blockchain such as EthereumD . Using the block chain of a type I but not the protocolView AnswerAnswer: B Explanation:...

Public blockchains most often use________ as a consensus mechanism.A . PoSB . PoBC . PoWD . PoETView AnswerAnswer: C Explanation: Public blockchains most commonly use Proof of Work (PoW) as their consensus mechanism, especially in well-established networks such as Bitcoin and, until recently, Ethereum. PoW is a protocol that relies...

What is a DEXA . A distributed exchange that covers multiple nationalitiesB . A cryptocurrency exchange such as coinbaseC . A decentralized exchanged that allows users to exchange cryptocurrency directlyD . A Decentralized finance app or DAppView AnswerAnswer: C Explanation: A Decentralized Exchange (DEX) is a platform that allows users...

Self-executing computer programs which facilitate transaction automation and eliminates the need for intermediaries are called what?A . CryptocurrenciesB . Bitcoin miningC . Distributed ledgersD . Smart contractsView AnswerAnswer: D Explanation: Smart Contracts are self-executing computer programs that automatically enforce, verify, and facilitate the terms of a contract when certain conditions...

______is a computer program that runs stop a blockchain and embedded within it are governance and business logic rulesA . DappsB . DaSC . DAOD . DACView AnswerAnswer: A Explanation: Decentralized Applications (Dapps) are applications that run on a blockchain network and include embedded governance and business logic rules. Unlike...

Which of the following is a language for working with Ethereum?A . MistB . RikebyC . SolidityD . KovanView AnswerAnswer: C Explanation: Solidity is the primary programming language used for developing smart contracts on the Ethereum blockchain. It is a statically typed, high-level language similar to JavaScript and C++, and...

________is used to split up the tasks into multiple chunks that are then processed by multiple nodes.A . ShardingB . ParsingC . PartitioningD . FragmentingView AnswerAnswer: A Explanation: Sharding is a scalability technique that splits tasks or data into smaller, more manageable pieces called "shards." These shards are then processed...

_______uses a Trusted Execution environment (TEE) to provide randomness and safety in the leader election process via a guaranteed wait time.A . PoETB . PoDC . PoAD . PolView AnswerAnswer: A Explanation: Proof of Elapsed Time (PoET) is a consensus mechanism that uses a Trusted Execution Environment (TEE) to ensure...

Which of the following are likely use cases for blockchain in the energy industry? (Select two.)A . Safety in energy productionB . Energy tradingC . Safety in energy transportD . Smart power gridsView AnswerAnswer: B, D Explanation: Blockchain technology has significant potential in the energy industry, particularly in energy trading...

A________in a new chain and requires clients to upgrade in order to participate on the new blockchain.A . Hard forkB . Soft forkC . ShardingD . Sub chainView AnswerAnswer: A Explanation: A hard fork occurs when there is a fundamental change in a blockchain’s protocol, resulting in the creation of...