CBBF Practice Test Questions

84 Questions


The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.


A. increase the use of cryptocurrency


B. speed up the internet


C. make Bitcoin less expensive


D. increase device connectivity





D.
  increase device connectivity

____________ledger technology is referred to as DLT.


A. Distributed


B. Decentralized


C. Database


D. All of the above


E. None of the above





A.
  Distributed

How does a private Blockchain differ from a public one? Select all that apply.


A. A private Blockchain does not use proof of work consensus


B. A private Blockchain is more efficient and has faster transaction times


C. A private Blockchain is not distributed


D. A private Blockchain often requires the identity of users to be known





D.
  A private Blockchain often requires the identity of users to be known

One of the great advantages of creating a new Blockchain solution is__________.


A. the ability to completely customize a unique business solution


B. combining Blockchain technologies to fit your business solution


C. merging your existing network technology into a new Blockchain solution


D. not being limited to a conventional business solution or restriction


E. All of the above





D.
  not being limited to a conventional business solution or restriction

A smart contract on the Blockchain provides __________. Select all that apply


A. Specific actions to be taken on events or transactions


B. The same contracts a bank provides


C. A set of business conditions that must be met


D. Better anonymity of those making transactions





C.
  A set of business conditions that must be met

Blockchain work best when they are _____________ .


A. Combined with other technologies


B. Used for financial applications


C. Used alone


D. Used as an alternative to a database





A.
  Combined with other technologies

How is Blockchain benefiting voting?


A. By revealing the identity of each voter and who or what they voted for


B. By controlling who gets to vote


C. By only allowing a certain number of votes per person


D. By allowing voters to trust their vote has been counted





D.
  By allowing voters to trust their vote has been counted

What is a node in a Blockchain? Select all that apply.


A. A block


B. Certificate Authority


C. A miner


D. A computer running on the Blockchain





D.
  A computer running on the Blockchain

Smart Contracts DO NOT provide_______________.


A. Authority


B. Anonymity


C. Efficiency


D. Accuracy





B.
  Anonymity

What is a block?


A. A list or record of data


B. A wallet that stores digital currency


C. A pool of unconfirmed transactions


D. A list or record of certificates


E. All of the above





A.
  A list or record of data

Who can read records on a public Blockchain?


A. Everyone on the Blockchain


B. No one


C. Only the creator


D. The users with access permissions


E. None of the above





A.
  Everyone on the Blockchain

The Ethereum Blockchain provides a/an _____________ virtual machine.


A. Windows compatible


B. energy efficient


C. Linux compatible


D. turing-complete





D.
  turing-complete


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