試題詳解

複選題
18.(AB) This creates a decentralized distribution chain that gives everyone access to the document at the same time
(AC) It makes the history of any digital asset unalterable and transparent through the use of decentralization and cryptographic hashing
(AD) The “proof of work” system that bitcoin uses to validate transactions, for example, consumes vast
amounts of computational power
(AE) In Bitcoin’s case, blockchain is used in a decentralized way so that no single person or group has
control—rather, all users collectively retain control
(BC) With solutions to this issue being in development for years, there are currently blockchains that are
boasting over 30,000 transactions per second
(BD) It differs from a typical database in the way it stores information by keeping data in blocks that are then chained together
(BE) At that rate, it’s    estimated    that the blockchain network can only manage about seven transactions per second