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CBSA BTA Certified Blockchain Solution Architect Exam
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CBSA BTA Certified Blockchain Solution Architect Exam
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25 Questions

1. You are considering writing a smart contract for Ethereum and would like to use a robust programming language. Which programming language is considered the most flexible and robust for Ethereum?
2. Which of the following would NOT be true about what a smart contract gives your organization?
3. Looking the graph below, what type of an attack is this likely?
4. When considering tokens on the Ethereum Blockchain what is the main difference between ERC20 and ERC721 tokens?
5. Which of the following enterprise blockchains have a pluggable framework consensus algo?
6. What blockchain is considered Blockchain 1.0, the first blockchain?
7. What are two reasons that you would consider implementing a POW algo in your blockchain?
8. Gas has multiple associated terms with it: Gas Prices, Gas Cost, Gas Limit, and Gas Fees. The principle behind Gas is to have a stable value for how much a transaction or computation costs on the Ethereum network. Which is considered to be the static value for how much a computation costs in terms of Gas?
9. Your company working for is now considering the blockchain. They would like to perform a POC with R3 Corda. The CIO was reading about different blockchain consensus algos and would like to understand what type of consensus algos is used with Corda. What is the best answer?
10. The___________________ is the runtime environment for smart contracts in Ethereum?
11. 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.
12. The Secure Registry Services enables Secured ____________Registry of base Hyperledger images and custom images containing chaincodes. What type of registry is implemented?
13. Which of the following blockchain is NOT a permissioned blockchain?
14. In Hyperledger Fabric, the smart contract logic is also called by two other names _______________ and ______________?
15. Which is the right order for Ethereum Denominations?
16. What does the 20 in ERC20 mean or relate to?
17. You have flown to NYC to have a discussion with a technical executive of a too big to fail bank. You are having a discussion about blockchain algos and the customer is asking what are some disadvantages of using a POW algo?
18. In Ethereum the difficulty adjustment algorithm is coded in the ___________ file.
19. ___________________ensures that the shared ledgers are exact copies, and lowers the risk of fraudulent transactions, because tampering would have to occur across many places at exactly the same time.
20. The ____________of the tree is the topmost node and hence this tree is represented upside down. The bottommost nodes are called as ________nodes. Each node is simply a cryptographic hash of a transaction. In the above diagram, Transaction A,B, C,C from the leaves of the tree. Select one.
21. Select the best statement for determining how consensus is reached.
22. Chaincode is a decentralized transactional program, running on the validating nodes. As with every chaincode, it implements the ____________________ in particular, Init and Invoke functions. What does is actually implemented?
23. When you considering cryptography for a blockchain what would be types of symmetric cryptography you could consider?
24. You would like to start your Gethin Fast Sync Mode. What is the command for this?
25. What is diagram referencing below?

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