Free Blockchain CBBF Exam Questions

Become Blockchain Certified with updated CBBF exam questions and correct answers

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Total 84 Questions | Updated On: Dec 17, 2025

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Question 1

What are the drawbacks of using Blockchain? Select all that apply

A : gh cost of developers

B : anging technology and the lack of a stable standard

C : use of cryptography

D : use of new applications

Answer: B

Question 2

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

A : crease the use of cryptocurrency

B : eed up the internet

C : ke Bitcoin less expensive

D : crease device connectivity

Answer: D

Question 3

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

A : 24K per second

B : 175K per second

C : ly limited to the number of nodes on the network

D : 7-15 per second

E : ne of the above

Answer: D

Question 4

In a private business Blockchain, transactions are endorsed by______________.

A : ly relevant business participants

B : ly the smart contract developer

C : l the nodes on the Blockchain

D : l participants with access to the network

Answer: A

Question 5

The common safe place to store personal cryptocurrency is_____________.

A : digital wallet

B : a secure ledger

C : bank account

D : a secure database

Answer: A

Page: 1 / 17

Total 84 Questions | Updated On: Dec 17, 2025

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