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Free CBBF Exam Braindumps (page: 5)

Page 5 of 22
PDF with 84 Questions

Which of the following statements sums up the Proof of Work consensus process?

  1. Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.
  2. Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.
  3. All nodes agree on the data of the transaction.
  4. Miners send assets to an inactive address. This process selects the next owner of a block.

Answer(s): C


Reference:

https://www.nichanank.com/blog/2018/5/23/consensus-algorithms-pow



The Ethereum Blockchain provides a/an _____________ virtual machine.

  1. Windows compatible
  2. energy efficient
  3. Linux compatible
  4. turing-complete

Answer(s): D


Reference:

https://www.mycryptopedia.com/ethereum-virtual-machine-explained/



Which Blockchain protocol uses Proof of Work Consensus? Select all that apply

  1. Hyperledger
  2. Corda
  3. Bitcoin
  4. Ethereum
  5. All of the above

Answer(s): A,C,D



One of the big issues that new financial transaction Blockchain solutions face is _____________.

  1. increasing the number of transactions per second (TPS)
  2. the inability to find use cases
  3. solving user identity
  4. getting banks to cooperate

Answer(s): A


Reference:

https://www.cnbc.com/2018/10/01/five-crucial-challenges-for-blockchain-to-overcome-deloitte.html



Page 5 of 22



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