CBSA Exam Questions and Answers | Exam-Dumps (Page: 9)

QUESTION: 41

Blockchains are decentralized ledgers which, by definition, are not controlled by a central authority. Due to the value stored in these ledgers, bad actors have huge economic incentives to try and cause faults.

What algo was the original solution to the potential problem as specified by Satoshi?

Proof of Stake
Byzantine Fault Tolerance
Proof of Burn
Proof of Work
Dynamic Proof of Stake

Answer(s): D

Explanation:

The big breakthrough when Bitcoin was invented, was the use of Proof-of-Work as a probabilistic solution to the Byzantine Generals Problem as described in depth by Satoshi Nakamoto.

Reference:

https://medium.com/loom-network/understanding-blockchain-fundamentals-part-1-byzantine-fault- tolerance-245f46fe8419

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QUESTION: 42

What are some likely repercussions that could occur as a result of a 51% attack to the Bitcoin network? (Select three.)

Unplanned Fork
Double Spending
Cancelling Transactions
Planned Fork
Selfless Mining

Answer(s): A,B,C

Explanation:

The 4 main attacks that can happen directly as a result of the 51% attack are: Selfish mining. Cancelling transactions. Double Spending. Random forks.

Reference:

https://blockgeeks.com/guides/hypothetical-attacks-on-cryptocurrencies/

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QUESTION: 43

____________is a real-time gross settlement system (RTGS), currency exchange and remittance network by __________

Ripple, Ripple
Ripple, JP Morgan
XRP, Ripple
Ripple, XRP

Answer(s): A

Explanation:

Ripple is a real-time gross settlement system (RTGS), currency exchange and remittance network by Ripple.

Reference:

https://ripple.com/

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QUESTION: 44

A centralized system is one that that is governed by a hierarchical authority. Which of the following Blockchains would be correctly stated as centralized?

Monero
Ethereum
Bitcoin Cash
Ripple

Answer(s): D

Reference:

https://medium.com/@dustindreifuerst/permissioned-vs-permissionless-blockchains-acb8661ee095

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QUESTION: 45

Message Calls in the Ethereum EVM is limited to a depth of ____________?

128
256
1024
2048

Answer(s): C

Explanation:

Calls are limited to a depth of 1024, which means that for more complex operations, loops should be preferred over recursive calls.

Reference:

https://solidity.readthedocs.io/en/latest/introduction-to-smart-contracts.html#the-ethereum-virtual-machine

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Blockchain CBSA Exam (page: 9) Blockchain BTA Certified Solution Architect Updated on: 15-Feb-2026

QUESTION: 41

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QUESTION: 42

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QUESTION: 43

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QUESTION: 44

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QUESTION: 45

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Blockchain CBSA Exam (page: 9)
Blockchain BTA Certified Solution Architect
Updated on: 15-Feb-2026