Blockchain CBBF Exam (page: 2)
Blockchain Certified Business Foundations
Updated on: 25-Dec-2025

Viewing Page 2 of 18

Transparency allows _____________.

  1. a trustless system where users can be certain of a result
  2. easy iteration through the Blockchain
  3. Records on the Blockchain to never be changed
  4. users on the Blockchain to change data on the Blockchain

Answer(s): A


Reference:

https://lisk.io/academy/blockchain-basics/benefits-of-blockchain/why-is-blockchain-trustless



Blockchain is always a better alternative to a standard database.

  1. True
  2. False

Answer(s): B


Reference:

https://www.coindesk.com/information/what-is-the-difference-blockchain-and-database



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

  1. A private Blockchain does not use proof of work consensus
  2. A private Blockchain is more efficient and has faster transaction times
  3. A private Blockchain is not distributed
  4. A private Blockchain often requires the identity of users to be known

Answer(s): D


Reference:

https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f



Why is a private Blockchain used instead of a public one?

  1. To limit user access and permissions
  2. It is less expensive to develop
  3. It requires less mining power than a public Blockchain
  4. It requires fewer administrators to manage it

Answer(s): A


Reference:

https://medium.com/coinmonks/public-vs-private-blockchain-in-a-nutshell-c9fe284fa39f



A distributed network is always decentralized.

  1. True
  2. False

Answer(s): B


Reference:

https://stackoverflow.com/questions/49195562/difference-between-a-distributed-and-a-decentralized-network



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