Free Blockchain CBBF Exam Practice Questions & Explanations

Last updated on: Oct 3, 2026
Prepared & Reviewed by the ValidExamDumps Editorial Team

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Question 1

How are blocks chained together?

Answer Options
Correct Answer: B
Question 2

The Ethereum Blockchain provides a/an _____________ virtual machine.

Answer Options
Correct Answer: D
Question 3

Once a record has been added to a Blockchain it can be altered.

Answer Options
Correct Answer: B
Question 4

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

Answer Options
Correct Answer: B
Question 5

The transaction has contained in a block is the ___________.

Answer Options
Correct Answer: A