blockchain CBBF Exam Questions

Questions for the CBBF were updated on : Nov 21 ,2025

Page 1 out of 6. Viewing questions 1-15 out of 84

Question 1

The Corda distributed ledger is designed for _______________.

  • A. Any business transactions
  • B. International shipping
  • C. The transportation industry
  • D. Financial transactions
Answer:

D

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Question 2

The transaction has contained in a block is the ___________.

  • A. Metadata used for ID
  • B. Same as the user private key
  • C. Digital fingerprint of the block
  • D. Unique number to show it’s a Bitcoin block
Answer:

A

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Question 3

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
Answer:

C

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Question 4

A Blockchain is a/an _____________ shared ledger distributed system.

  • A. Anonymous
  • B. Newer version of a
  • C. Append-only
  • D. Confidential
Answer:

A

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Question 5

One of Blockchain's primary uses of cryptography is ___________.

  • A. Keeping the IP addresses a secret
  • B. Allowing users to communicate with each other anonymously
  • C. Keeping the network configuration a secret.
  • D. Providing a public and private encryption key
Answer:

D

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Question 6

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
Answer:

A

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Question 7

Why is Blockchain important?

  • A. It allows for a secure, global, and peer to peer record of data
  • B. It provides anonymity when making transactions
  • C. It is a free, trusted bank
  • D. It replaces all ledgers
  • E. All of the above
Answer:

B

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Question 8

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
Answer:

A

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Question 9

Cryptocurrencies have all the same characteristics as fiat currencies?

  • A. True
  • B. False
Answer:

B

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Question 10

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

  • A. It is less expensive to develop
  • B. It requires less mining power that a public Blockchain
  • C. To limit user access and permissions
  • D. It requires fewer administrators to manage it
Answer:

C

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Question 11

Where is a Blockchain's central server?

  • A. Where the Blockchain is created
  • B. Located with the owner of the server
  • C. There is no central server, it is distributed
  • D. Orderer Node
  • E. None of the above
Answer:

C

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Question 12

What do consensus methods achieve?

  • A. Anonymity in a peer to peer network
  • B. The highest level of security in a database by ensuring 51% agreement of nodes on the network.
  • C. The most efficient way of recording a transaction in any database.
  • D. It confirms that all nodes on the network are legitimate.
  • E. None of the above
Answer:

D

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Question 13

Who governs a Blockchain?

  • A. The users
  • B. The architects
  • C. The creator of the Blockchain
  • D. The developers
Answer:

A

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Question 14

Blockchains are being implemented in the food supply chain because ____________.

  • A. Consumers demand to know where their food comes from
  • B. It allows farm to table accountability for safety
  • C. They have the potential to provide fast, specific supplier data
  • D. It prevents food waste if a food contamination problem occurs.
  • E. All of the above
Answer:

E

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Question 15

Transactions per second (TPS) for a Proof-of-Work Blockchain are approximately?

  • A. 24K per second
  • B. 175K per second
  • C. Only limited to the number of nodes on the network
  • D. 7-15 per second
  • E. None of the above
Answer:

D

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