How To Pass the Certified Blockchain Solution Architect (CBSA) Exam Easily?

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How To Pass the Certified Blockchain Solution Architect (CBSA) Exam Easily? Certified Blockchain Solution Architect (CBSA) exam is one of the best ways to demonstrate your knowledge and skills in the emerging space of Blockchain Technology. FreeTestShare offers you a 100% real CBSA Exam Demo with real exam questions. CBSA Exam dumps can help you pass the Certified Blockchain Solution Architect exam smoothly! If you are preparing or planning on CBSA exam, you can try these CBSA sample exam questions to see if you are ready for the real exam.

Try these CBSA exam questions and answers for free.

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1. Ethereum is considered to be a ______________type of blockchain.

Permissionless

Permission Based

Hybrid

Private

2. By design, permissioned blockchains such as Hyperledger Fabric are not capable of creating or utilizing cryptocurrency.

FALSE

TRUE

3. The most popular Ethereum development framework is currently Truffle.

What are three features of Truffle? (Select three.)

Scriptable deployment & migrations framework.

Automated contract testing with Mocha and Chai.

Takes Dapp transactions via Ws-rpc, json-rpc, ipc-rpc.

Built-in smart contract compilation, linking, deployment and binary management.

Automated contract testing with Mocha only

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

Authenticated Encryption

Proof of Work

PBKDF2

None of the above

5. Application Specific Integrated Circuit (ASIC) are used always in enterprise blockchains.

TRUE

FALSE

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

Equity

Utility

Ethereum

Game-based

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

Have a reference to the public address of the deployed Smart Contract

Have the appropriate permissions needed to invoke the functions of the Smart Contract

Have sufficient gas to perform read and write operations against the Smart Contract

All of the above

8. ___________________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.

Encryption

Consensus

Validation

Replication

9. In public key cryptography, the public key is used to:

Sign/approve any transaction/action that might be made by the holder of the key pair

Verify the digital signature of a given key pair

Decrypt the private key so valid transactions/actions can be performed

Encrypt the private key

10. The word “Drapp” or “DApp” is most commonly understood to mean what?

Distributed Application

Distributed Apps and Programs

Decentralized Application

Distributed Autonomous Application

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11. Which one of the following is a consideration that must be taken into account when using Hyperledger Fabric that you wouldn’t need worry about on Ethereum?

The fees for deploying and using Smart Contracts

How you will provide proper uptime for the network

The level of security of Smart Contracts (chaincode)

How often hard forks occurs on the software

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

The initiator

Everyone

The recipient of a transaction

The network owner / administrator

13. ___________is advantageous because it presents scalability and low cost transactions, but like DPoS introduces a component of centralization.

What algorithm is being referenced here?

Byzantine Fault Tolerance

Hashgraph

Proof of Stake

Proof of Work

DAG

14. Transactions can only be added to a blockchain.

TRUE

FALSE

15. What benefit does HPE Cloud Cruiser provide?

Need for proven, production-ready technology

Need a full history of all application data

Require top-notch performance

Need to avoid data duplication or redundancy

16. 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.)

Faster Block writes

Greater Transaction Security

Faster Performance

Greater transaction Capacity

17. Hyperledger Composer has following two main components?

Composer Playground

Business Network Archive

18. What type of encryption is shown below and is commonly used in blockchain cryptography?

Diffie-Hellman

Asymmetric Encryption

Synchronous

Asynchronous

Symmetric Encryption

19. What is the language that Solidity is using to build on the Ethereum Virtual Machines(EVM)?

.Net

Javascript

C++

Node.js

PHP

20. R3 Corda does not organize time into blocks .

What does Corda actually perform and use?

Ripple is implemented as the blockchain and XRP for cryptocurrency.

Notary services and timesmapping

R3 Corda is a blockchain and does use blocks

Notary services and timestamping

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21. What component on the blockchain maintains the "world state"?

.acl

Reputation Manager

Distributed Ledger

.bna

22. Adding more nodes to a blockchain network has which effect?

Increased centralization

Increased security

Decreased costs

Increased performance

23. Which of the following enterprise blockchains have a pluggable framework consensus algo? (Select two.)

Quorum

R3 Corda

Ethereum

Hyperledger Fabric

Ripple

24. Consider the following scenario: Due to consistent inaccuracies and outdated real estate listings, a residential real estate company wants to build a blockchain solution that accurately depicts which homes (assets) are available for purchase across all countries/provinces. All available homes should be publicly viewable by the general consumer audience, but certain details of the home, such as history of maintenance, should only be viewable by licensed real estate professionals.

Which architecture would best solve the product need?

Public data hosted on a public blockchain, Privileged data security hoisted on a private database

The entire solution built on a private blockchain with proper permissions for both public and privileged data

Public and privileged data on hybrid blockchain will Proof of Stake consensus

Public data hosted on a public blockchain; Privileged data hosted on a private blockchain

25. To determine the anticipated load on an application, the number of end users should be considered along with?

The location of the user

The average number of transactions per user

The average age of the user

The average bandwidth speed of the user

26. Which is the right order for Ethereum Denominations?

Finney, Szabo, Mether, Wei

Gwei, Szabo, Finney, Ether

Finney, Szabo, Mether, Gwei

Wei, Finney, Szabo, Ether, Tether

27. 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 ______________.

Oracles

Wizards

Data rabbits

All of the above

28. Contracts live on the blockchain in an Ethereum-specific binary format called _____________?

EOS

EVM Code

Ether

Gas

EVM Bytecode

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

The random data to be combined with the block data which will produce a hash output matching the current difficulty level

Random nonsense data inserted at the end of a block to fill it completely

The average Bitcoin price over the last 90 days

None of the above

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

51% Attack

P+ Epsilon Attack

Blacklisting

Selfish Mining Attack

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31. There are two types of tokens in blockchain solutions. (Select two.)

Legal

Utility

Equity

Financial

32. The difference between a decentralized and a distributed system is?

A decentralized system is hosted across multiple datacenters

Distributed and decentralized are the same thing

A decentralized system is not wholly owned by a single entity

A distributed system is not wholly owned by a single entity

33. Byzantine Fault Tolerance can be achieved only through Proof of Work.

FALSE

TRUE

34. Ordered: They are the communication backbones and responsible for the distribution of the transactions.

Client Node

Ordered Node

Certificate Node

Anchor

Peer Node

35. Hyperledger Composer has two main components.

What are the two components? (Select two.)

Fabric

Sawtooth

Playground

Explorer

Business Network Archive

SDK

36. Vitalik Buterin referred to this concept of trust beyond just currency as ‘smart contracts’ or even blockchain-based “decentralized autonomous organizations” (DAOs). Ethereum is considered Blockchain version?

2.0

4.0

3.0

1.0

37. A Smart Contract is most like which classical programming object?

Class

Variable

Method

Function

38. Which of the following is NOT a requirement of an enterprise blockchain typically?

Append-only distributed system of record shared across business network

Cost efficient blockchain

Transactions are endorsed by relevant participants

Ensuring appropriate visibility; transactions are secure, authenticated & verifiable

39. Which of the following scenarios and databases is least suited to be utilized by a blockchain solution?

Scenario: Law enforcement system; Dataset: Criminal Arrests, Warrants for Arrest, Conviction Date

Scenario: An Email campaign service; Dataset: Recipient Email, From Email; Subject, Body

Scenario: A family filter wifi router; Dataset: Websites Visited, Websites Blocked, Download History

Scenario: Credit score app; Dataset: Credit Score, Hard Inquiries; Collections, Date Removed, Date Added

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

FALSE

Its Negotiable

TRUE

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

The app uses an SDK which invokes functionality on the chaincode which then announces the transaction to any peers required to endorse the transaction

The app uses Hyperledger Composer to communicate with CouchDB which in turn invokes chaincode functionality

Client apps don’t communicate with Hyperledger fabric directly, they must use Hyperledger Composer for the transmission

The app points to a node’s IP address, then calls an invoke function on the chaincode address to start the write process

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

It’s a competing blockchain to Hyperledger Fabric in the Hyperledger suite of tools

It’s an API layer that sits above Hyperledger Fabric and is required to interact with the Fabric blockchain

It’s a toolset and framework for easily developing business networks

It’s a consensus-focused replicable state machine framework for blockchain development

43. The difference between Ethereum tokens and a standalone currency like Litecoin is that ___________tokens piggyback on the Ethereum network, hosted by Ethereum addresses and sent using Ethereum transactions.

ERC

ERC20

Ether

BIP

44. Which of these desired outcomes is best obtained through a Blockchain solution?

Pending financial transactions need to be stored until completed and then should be deleted

A website that shows current data from various stock markets

A mobile app that displays information about today’s weather

None of the above

45. You are using Truffle for an Ethereum contract and would like to use a default set of contracts and tests from within an empty project directory.

What is the syntax?

truffle defaults

truffle init

truffle test

truffle compile

46. Public blockchains can alter the blockchain ledger by:

Creating a hard fork of the blockchain data, tooling and/or software

Achieving community consensus via a Smart Contract to update the ledger

Re-hashing the blocks from the total block height down to the genesis block

Blockchain ledgers are immutable and can never be altered

47. In public key cryptography, the private key is used to:

Encrypt the public key

Generate unique hash values each time it is used

Verify the digital signature of a public key

Sign/approve any transaction/action that might be made by the holder of the key pair

48. Select the two kinds of accounts in Ethereum which share the same address space. (Select two.)

Gas Account

Contract Accounts

External Accounts

Internal Accounts

dApp Accounts

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

What is required?

Consensus

Crypthography

Bandwidth

Availability

50. The key difference between encryption and hashing is that encrypted strings can be reversed back into their original decrypted form if you have the right key?

TRUE

FALSE

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51. In the Ethereum EVM there are two types of memory areas. (Select two.)

Storage

Database

Memory

Persistent

Ephemeral

52. The block creation time is set to how many minutes in Bitcoin?

120

100

150

53. Which of these technical components best represents why cryptocurrency is able to operate successfully?

An immutable digital ledger that is validated and distributed across many peers

Using API calls, cryptocurrency having a direct correlation to USD exchange rates

High performance computing power allows cryptocurrency to be minted just as a central government might do with fiat currency

Blockchain cryptocurrency transactions are always public which generates user trust and adoption

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

Proof of Stake

Proof of Activity

Proof of Burn

Proof of Sending

55. 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.

Root, Hash

Root, Leaf Nodes

Has, Root nodes

Leaf nodes, Root

Leaf Nodes, Root