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blkchn2.001&esa&1&N&_________ was the first ;asset recorded using a blockchain ledger.&bitcoin&&Bitcoin was the first<br>asset recorded using a ;<br>;blockchain ledger.&&&&undefined.0&&&&&1&&&N.
blkchn2.002&esa&0&N&________ and ________ represent the first two ;generations of blockchain technology, ;respectively.&bitcoin ethereum&&Bitcoin and Ethereum represent the first two <br>; ;<br>;generations of blockchain technology, <br>; ;<br>;respectively.&&&&undefined.0&&&&&1&&&N.
blkchn2.003&esa&0&N&Bitcoin also uses operators of network nodes, ;called “______,” who must agree by ;consensus when adding new blocks to chain.&miners&&Bitcoin also uses operators of network nodes, <br>; ;<br>;called “miners,” who must agree ;<br>;by<br>consensus <br>;when adding new blocks to ;<br>;chain.&&&&undefined.0&&&&&1&&&N.
blkchn2.004&esa&0&N&The consensus mechanism is called _______ ___ ;_____, which requires network nodes to compete ;with each other by performing extensive ;computational work.&proof of work&&The consensus mechanism is called Proof of Work <br>; ;(PoW), which requires network nodes to compete ;<br>;with each other by performing extensive ;<br>;computational work.&&&&undefined.0&&&&&1&&&N.
blkchn2.005&esa&0&N&This approach of adding payment, difficulty, and ;expense to the administration of the ledger is ;intended to keep ____________ from operating ;network nodes.&hackers,bad actors&&This approach of adding payment, difficulty, and ;<br>;expense to the administration of the ledger is ;<br>;intended to keep hackers or other bad actors from ;<br>;operating network nodes.&&&&undefined.0&&&&&1&&&N.
blkchn2.006&esa&0&&The payments made to reward network operators ;explain why cryptocurrencies are mandatory in a ;________ blockchain but are not needed in a ;permissioned blockchain.&public&&The payments made to reward network operators ;explain why cryptocurrencies are mandatory in a ;public blockchain but are not needed in a ;permissioned blockchain.&&&&undefined.0&&&&&1&&&N.
blkchn2.007&esa&0&N&Ethereum came along years later offering a ;number of improvements over Bitcoin’s ;implementation, along with extensive ;development capabilities and tools that ;________ can use as a development platform to ;build their own blockchain applications.&anyone,everyone,anybody,everybody&&Ethereum came along years later offering a <br>; ;<br>;<br>;number of improvements over Bitcoin’s ;<br>;<br>;<br>;implementation, along with extensive ;<br>;<br>;<br>;development capabilities and tools ;<br>;that <br>;anyone <br>;can use as a development ;<br>;platform <br>;to build <br>;their own ;<br>;blockchain <br>;applications.&&&&undefined.0&&&&&1&&&N.
blkchn2.008&esa&0&N&Ethereum also introduced its own cryptocurrency ;called Ether (ETH) and replaced the PoW ;consensus mechanism with a _________ __ ;_________ (PoS) protocol that requires less ;overall computation.&proof of stake&&Ethereum also introduced its own <br>cryptocurrency ;called Ether (ETH) and replaced <br>the PoW consensus ;mechanism with a Proof of Stake <br>(PoS) protocol that ;requires less overall computation.&&&&undefined.0&&&&&1&&&N.
blkchn2.009&esa&0&N&The bottom line is that Ethereum smart ;contracts enable the exchange of digital assets ;between parties in a more sophisticated and ;reliable manner and are the mechanism used ;to eliminate _______________.&intermediaries&&The bottom line is that Ethereum smart contracts ;<br>;enable the exchange of digital assets between ;<br>;parties in a more sophisticated and reliable ;<br>;manner and are the mechanism used<br>to eliminate ;<br>;intermediaries.&&&&undefined.0&&&&&1&&&N.