CBSA Exam Training Practice Tests (Blockchain BTA Certified Blockchain Solution Architect)]

Question 1

Which of the following is NOT considered a token?

A. EOS B. Golem C. LTC D. ICON

Correct Answer: C

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Question 2

Secure Hash Algorithm (SHA-256) output is always 256 bits or 32 bytes in length regardless of the length of the input (even if input is millions of bytes). Select best answer.

A. True B. Depends on input C. False D. NSA is spying on us so what's it matters.

Correct Answer: A

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Question 3

How many peers in the network need to endorse a transaction in a Hyperledger Fabric blockchain?

A. The number of peers required to endorse a transaction is driven by the IAM policy that is specified by the ledger. B. The number of peers required to endorse a transaction is driven by the endorsement policy that is specified at chaincode deployment time. C. The number of peers required to endorse a transaction is driven by the endorsement policy that is specified by the ledger. D. The number of peers required to endorse a transaction is driven by the endorsement policy that is specified by the DApps.

Correct Answer: B

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Question 4

Taking a series of unrelated transactions and writing them to a particular block is:

A. Most common in permissioned blockchains B. Most common in public blockchain C. Required among all blockchains D. Highly insecure and considered bad practice

Correct Answer: D

Question 5

What is the nonce-field in a transaction?

A. To sum up all ethers sent from that address B. Adds a checksum for transactions C. To distribute the workloads in the EVM D. Protects against replay attacks

Correct Answer: D

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Question 6

Composer Modeling Language is an object-oriented modeling language that defines the domain model for a business network definition. The modeling language is saved as a __________ file.

A. .ico B. .go C. .json D. .txt E. .cto

Correct Answer: E

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Question 7

If a product's requirements call for public autonomous on-chain code, only using open source code, using cryptographic tokens, and allowing its users the ability to earn tokens, this product should be launched on the Ethereum blockchain.

A. FALSE B. TRUE

Correct Answer: B

Question 8

Fabric Ledger has two specific parts. Select answer with the proper two parts.

A. LevelIDb, CouchDB B. Transaction Logs, CouchDB C. State Data, Transactional Data D. State Data, Transaction logs

Correct Answer: D

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Question 9

What does the acronym DAO represent?

A. Distributed Anonymous Operations B. Decentralized Autonomous Organization C. Distributed Autonomous Operations D. Distributed Anonymous Organization

Correct Answer: B

Question 10

Ethereum tries to keep the mining time difference between ____ and _____seconds.

A. 10, 18 B. 10, 20 C. 10, 29 D. 10, 19

Correct Answer: D

Question 11

What are two cryptocurrencies that you would expect to see mining equipment with ASICS? (Select two.)

A. Ethereum B. Monero C. Bitcoin D. Neo E. Litecoin

Correct Answer: C,E

Question 12

Which of the following blockchain key components state how the transactions will be confirmed?

A. Validity Rules B. Encryption C. Consensus Algorithm D. Distributed Ledger database

Correct Answer: A

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Blockchain BTA Certified Blockchain Solution Architect - CBSA Exam Practice Test