BTA Certified Blockchain Solution Architect

Here you have the best Blockchain CBSA practice exam questions

  • You have 229 total questions across 46 pages (5 per page)
  • These questions were last updated on February 11, 2026
  • This site is not affiliated with or endorsed by Blockchain.
Question 1 of 229
SHA-1 is the most commonly used SHA algorithm, and produces a ______-byte hash value(size).
Answer

Suggested Answer

The suggested answer is D.

SHA-1 produces a 20-byte (160-bit) hash value. Each byte contains 8 bits, and since SHA-1 generates a 160-bit hash, this equates to 20 bytes. It is well-known in cryptographic practices and standard documentation.

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Question 2 of 229
What type of attack would be considered a very large flaw in public blockchains such as Bitcoin's Blockchain where the majority of hashpower could possibly be controlled thru an attack?
What is the specific attack Bitcoin could be exposed to?
Answer

Suggested Answer

The suggested answer is A.

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Question 3 of 229
How many satoshis are in 1 bitcoin and how many wei in an Ether? (Select two.)
Answer

Suggested Answer

The suggested answer is A, C.

There are 100,000,000 satoshis in 1 bitcoin, which corresponds to 1.0 × 10^8 satoshis. Therefore, 1 BTC does not convert to option A. However, 1 ether is equivalent to 1,000,000,000,000,000,000 wei, which is 1.0 × 10^18 wei. Thus, option A accurately reflects the conversion for ether. Meanwhile, the correct conversion for satoshis (bitcoin) should be chose option C. Therefore, the correct answers are option A and C.

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Question 4 of 229
In the Proof of Stake(POS) algorithm the miners are really known as ___________?
Answer

Suggested Answer

The suggested answer is C.

In the Proof of Stake (POS) algorithm, the individuals responsible for validating transactions and creating new blocks are typically known as 'forgers.' This term is used because, unlike Proof of Work systems where miners solve complex mathematical problems to create new blocks, in POS systems, the selection process is based on the amount of cryptocurrency held by the participant, known as their stake. The process is more about forging the new blocks based on the stakeholder's wealth rather than performing computationally intensive tasks.

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Question 5 of 229
A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________.
What is required?
Answer

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The suggested answer is A.

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About the Blockchain CBSA Certification Exam

About the Exam

The Blockchain CBSA (BTA Certified Blockchain Solution Architect) validates your knowledge and skills. Passing demonstrates proficiency and can boost your career prospects in the field.

How to Prepare

Work through all 229 practice questions across 46 pages. Focus on understanding the reasoning behind each answer rather than memorizing responses to be ready for any variation on the real exam.

Why Practice Exams?

Practice exams help you familiarize yourself with the question format, manage your time, and reduce anxiety on the test day. Our CBSA questions are regularly updated to reflect the latest exam objectives.