Blockchain Blockchain Other Certification CBBF Questions & Answers

• Question 41:

  Blockchain is the same as Bitcoin.

  A. True

  B. False

  Correct Answer: B

• Question 42:

  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

  Correct Answer: D

  Reference: https://lisk.io/academy/blockchain-basics/how-does-blockchain-work/nodes

• Question 43:

  What is a Blockchain?

  A. A digital currency

  B. An unchangeable record

  C. A database of usable secret data

  D. A Smart Contract

  E. All of the above

  Correct Answer: B

  Reference: https://www.computerworld.com/article/3191077/what-is-blockchain-the-complete-guide.html

• Question 44:

  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

  Correct Answer: D

• Question 45:

  How much data can be represented by the data hash of a block?

  A. a maximum of 20 MB

  B. virtually any amount

  C. not to exceed 100k bytes

  D. the hash is only a memory location

  Correct Answer: B

• Question 46:

  What is dApp?

  A. A decentralized application

  B. A dishonest application

  C. A decoded application

  D. A distributed application

  Correct Answer: A

  Reference: https://www.coindesk.com/information/what-is-a-decentralized-application-dapp

• Question 47:

  Blockchain transaction code categorizes the data put into blocks.

  A. True

  B. False

  Correct Answer: B

• Question 48:

  Blockchain technology uses__________________.

  A. the latest banking software

  B. the same network S/W as the central bank

  C. the latest router S/W and network H/W

  D. A combination of older technology

  Correct Answer: D

• Question 49:

  Blockchain is faster and more efficient than a standard database.

  A. True

  B. False

  Correct Answer: B

  Reference: https://hackernoon.com/databases-and-blockchains-the-difference-is-in-their-purpose-anddesign-56ba6335778b

• Question 50:

  What is the focus or primary goal of a private Blockchain? Select all that apply.

  A. To provide anonymity in business

  B. To save money by eliminating intermediaries

  C. To create a distributed database that allows for CRUD

  D. To provide transparency and trust for business while remaining secure

  Correct Answer: D