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Exam Overview
Exam Code CBBF
Exam Name Certified Blockchain Business Foundations Exam
Vendor Blockchain
Total Questions 84
Last Updated 28-Oct, 2026
Free CBBF Questions Get Premium Access
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Free CBBF Practice Questions

Explore 8 free practice questions for the Blockchain CBBF exam and review the answers and explanations to support your preparation.

  1. Question 1

    Single answer

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

    • Option A:

      To limit user access and permissions


      Correct
    • Option B:

      It is less expensive to develop


      Correct
    • Option C:

      It requires less mining power than a public Blockchain


      Correct
    • Option D:

      It requires fewer administrators to manage it

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: A

  2. Question 2

    Single answer

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

    • Option A:

      To limit user access and permissions


      Correct
    • Option B:

      It is less expensive to develop


      Correct
    • Option C:

      It requires less mining power than a public Blockchain


      Correct
    • Option D:

      It requires fewer administrators to manage it

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: A

  3. Question 3

    Single answer

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

    • Option A:

      To limit user access and permissions


      Correct
    • Option B:

      It is less expensive to develop


      Correct
    • Option C:

      It requires less mining power than a public Blockchain


      Correct
    • Option D:

      It requires fewer administrators to manage it

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: A

  4. Question 4

    Single answer

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

    • Option A:

      To limit user access and permissions


      Correct
    • Option B:

      It is less expensive to develop


      Correct
    • Option C:

      It requires less mining power than a public Blockchain


      Correct
    • Option D:

      It requires fewer administrators to manage it

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: A

  5. Question 5

    Single answer

    Smart Contracts DO NOT provide_______________.

    • Option A:

      Authority


      Correct
    • Option B:

      Anonymity


      Correct
    • Option C:

      Efficiency


      Correct
    • Option D:

      Accuracy

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: B

  6. Question 6

    Single answer

    The Ethereum Blockchain provides a/an _____________ virtual machine.

    • Option A:

      Windows compatible


      Correct
    • Option B:

      energy efficient


      Correct
    • Option C:

      Linux compatible


      Correct
    • Option D:

      turing-complete

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: D

  7. Question 7

    Single answer

    How do consensus algorithms like Proof of Work or Proof of Stake incentivize miners to participate?

    • Option A:

      By paying miners with U.S. dollars


      Correct
    • Option B:

      By paying the miners with cryptocurrency


      Correct
    • Option C:

      By placing their name on the Blockchain


      Correct
    • Option D:

      By not charging users monthly subscription costs

      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: B

  8. Question 8

    True / False

    Blockchain is always a better alternative to a standard database.

    • Option A: True
      Correct
    • Option B: False
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: B