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Which item(s) make up a block header?A . The hash of the Merkle root and the header of the previous blockB . The hash of every transaction in a specific block and the next blockC . The time stamp of the block and the genesis block hashD . The hash...

One of the big issues that new financial transaction Blockchain solutions face is____________.A . increasing the number of transactions per second (TPS)B . the inability to find use casesC . solving user identityD . getting banks to cooperateView AnswerAnswer: A Explanation: Reference: https://www.cnbc.com/2018/10/01/five-crucial-challenges-for-blockchain-to-overcome­deloitte.html

Blockchains are being implemented in the food supply chain because_____________.A . consumers demand to know where their food comes fromB . it allows farm to table accountability for safetyC . they have the potential to provide fast, specific supplier dataD . it prevents food waste if a food contamination problem...

Transparency allows_____________.A . a trustless system where users can be certain of a resultB . easy iteration through the BlockchainC . Records on the Blockchain to never be changedD . users on the Blockchain to change data on the BlockchainView AnswerAnswer: A Explanation: Reference: https://lisk.io/academy/blockchain-basics/benefits-of-blockchain/why-is-blockchain-trustless

The Ethereum Blockchain provides a/an _____________ virtual machine.A . Windows compatibleB . energy efficientC . Linux compatibleD . turing-completeView AnswerAnswer: D Explanation: Reference: https://www.mycryptopedia.com/ethereum-virtual-machine-explained/

Blockchain is always a better alternative to a standard database.A . TrueB . FalseView AnswerAnswer: B Explanation: Reference: https://www.coindesk.com/information/what-is-the-difference-blockchain-and-database

Why is Hyperledger a good business solution over other Blockchains?A . Always permissioned and privateB . It can employ smart contractsC . Modular design allowing for flexibility in solutionD . Multiple consensus methods can be chosen for useE . All the aboveView AnswerAnswer: D

Which Blockchain protocol uses Proof of Work Consensus? Select all that applyA . HyperledgerB . CordaC . BitcoinD . EthereumE . All of the aboveView AnswerAnswer: ACD

____________ledger technology is referred to as DLT.A . DistributedB . DecentralizedC . DatabaseD . All of the aboveE . None of the aboveView AnswerAnswer: A Explanation: Reference: https://cryptocurrencyfacts.com/what-is-distributed-ledger-technology-dlt/

How does a private Blockchain differ from a public one? Select all that apply.A . A private Blockchain does not use proof of work consensusB . A private Blockchain is more efficient and has faster transaction timesC . A private Blockchain is not distributedD . A private Blockchain often requires...