Certified Blockchain Solution Architect (CBSA) Real Dumps – Updated CBSA Dumps Questions [2022]

1. Proof of Stake consensus is most often needed for and implemented by:

2. The merkle tree contains a full list of the transactions on the blockchain?

3. Select the best statement for determining how consensus is reached.

4. What are some advantages of Proof of Stake (POS) mining over Proof of Work (POW) mining? (Select three.)

5. Which factor influences the gas cost to deploy a Smart Contact on the Ethereum blockchain?

6. In Proof of Work group consensus, the “nonce” refers to?

7. By default, who can see transaction details on a public/open blockchain?

8. The “Nothing-at-Stake” problem that could be realized by Proof of Stake networks would be caused by what?

9. Anonymity can be protected in blockchain applications by use of which of the following?

10. The Secure Registry Services enables Secured ____________Registry of base Hyperledger images and custom images containing chaincodes.

What type of registry is implemented?

11. In Hyperledger, nodes need a ________________ to be able to communicate to the

network.

12. A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________.

What is required?

13. A Smart Contract needs to check the daily closing price of a stock, in order to determine how to act. The proper way to do this is with the use of ______________.

14. In regards to understanding the Ethereum Virtual Machine what statement is true?

15. 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.

16. To approve pending ledger transactions, consensus algorithms often implement:

17. Blockchain systems assume all parties are trusted by all other parties in the exchange or ecosystem.

18. Which types of data are able to be stored on any given blockchain ledger?

19. Public blockchains can alter the blockchain ledger by:

20. Ideal bug reports link the bug being reported to a _______________

21. In blockchains there is the concept of "Group Consensus" and how many members must agree.

22. What are two advantages of using a DPOS algo in a blockchain? (Select two.)

23. What is a logic gate in electronics and computer science?

24. Which of the following cryptocurrencies use an alternate consensus method called "Scrypt" to BTC's Proof of Work (POW) SHA-256 algorithm?

25. In Ethereum the difficulty adjustment algorithm is coded in the ___________ file.

26. 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.

27. You are currently consulting with an organization that ships widgets overseas. They would like to implement a Hyperledger Fabric and would like to know about how to use cryptocurrencies with Hyperledger Fabric.

What is the best answer?

28. Ownership or partial ownership of an asset can be tracked with which type of token?

29. You are considering a cryptocurrency and for your privacy and anonymity are number one priority.

Which cryptocurrency should you likely use?

30. You are currently considering blockchain solutions for your organization. You read an article about "blockless" blockchains.

What are the two benefits that could be gained over a traditional blockchain solution? (Select two.)

31. How are blocks of data “chained” together to ensure the integrity of transactions?

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

33. You are considering writing smart contracts and there are a few different languages you can consider. (Select two.)

34. All blockchain networks and systems require autonomous on-chain code in order to process transactions.

35. You currently on a conference call with an executive from a too big to fail bank. They are validating that they want to use Quorum or another enterprise blockchain. They specifically want to know what type of consensus algo it uses and what industry for the Quorum blockchain targets.

36. The gas price is a value set by the creator of the blockchain transaction? (Select best answer.)

37. A private blockchain like Hyperledger would be the right choice for which scenario:

38. The two main types of transactions you can perform in Hyperledger Fabric are:

39. What consensus algo uses a method of sending coins to an address where they cannot be retrieved?

40. One consideration that should be taken into account when building a product on a public blockchain is:

41. 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?

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

43. What type of "bug" generally occurs when something isn’t right according to business requirements?

44. Looking the graph below, what type of an attack is this likely?

45. A ____________cipher basically means it is using a fixed key which replaces the message

with a pseudorandom string of characters.

It is basically the encryption of each letter one at a time.

What is the cipher type?

46. A product’s supply chain data is stored on blockchain. Only members of the product supply chain can write announcements to the blockchain but any consumer can query this data in a store to learn more about the product they want to buy. This is an example of a ____/____ blockchain.

47. Consider the following scenario: A large department store chain is being pressured by lawmakers to provide evidence that proves the store’s clothing is not produced through child labor. This is no easy task currently due to the store’s clothing being transferred between at least 6 different parties in between creation and placement at the storefront. The store chain is considering the use of blockchain to solve their problem. Discretion in the reading and writing of transactions is highly important to the store chain to protect its proprietary interests.

Which solution would best solve the product need?

48. Addresses on a blockchain are derived by a process of hashing _________.

49. In the Bitcoin blockchain the "block creation time" is set to 10 minutes and this can never change.

50. 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?

51. How does a client app communicate with Hyperledger fabric chaincode (Smart Contracts)?

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

53. Proof of Stake based blockchain systems use what design to permit valid write transactions?

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

55. ______ is the official Ethereum IDE that allows developers to build and deploy contracts

and decentralized applications on top of the Ethereum blockchain.

56. What is the difference in using Go-Ethereum over Ganache?

57. To interact with a deployed Ethereum Smart Contract, a user or app must:

58. What are two reasons that you would consider implementing a POW algo in your blockchain? (Select two.)

59. Bitcoin implemented Byzantine Fault Tolerance through a system named:

60. Ethereum smart contracts can be written in what programming languages? Select all that apply.

61. Which of the following is true concerning Hyperledger Composer?

62. What benefit does HPE Cloud Cruiser provide?

63. The primary difference between a blockchain and blockless solution is?

64. What type of peer node executes transactions?

65. A chaincode package that was signed at creation can be handed over to other owners for inspection and signing in Hyperledger.

Is it true that the workflow supports out-of-band signing of chaincode package?

66. Pending transactions on the Ethereum blockchain are always ordered by highest fee paid to lowest, and then written to the block in that order.

67. In what year did a whitepaper that was published by “Satoshi Nakamoto” outlined a solution to the Byzantine Generals problem?

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

69. When considering tokens on the Ethereum Blockchain what is the main difference between ERC20 and ERC721 tokens?

70. Miner takes each accepted transaction and writes it to the current block

C. Both of these ordering sequences can occur

D. None of the above

71. Which cryptocurrency is also known as "Smart Money" in the blockchain world?

72. When you are developing with Fabric Composer which of the following is true?

73. Which of the following is not considered an Ethereum testnet?

74. In what way(s) can Ethereum Smart Contract functions be invoked?