Newest Blockchain CBSA Practice Questions at Zero Cost

Get a glimpse of the real CBSA certification exam challenges with our free Blockchain CBSA practice test questions.

Question 1

Records on a public blockchain are deleted by?

AThey cannot be deleted

BFiling a request with the Ethereum Foundation

CRecalling the transaction of Etherscan.io

DDeleting the transaction from the app that sent it

Correct Answer: 1

Question 2

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

ABlockchain fees associated with transactions that both the product and the user may have in order to use the product on that blockchain

BWhat countries the blockchain is available in

CHow you can transfer your tokens to another blockchain if you decide to switch

DHow often the blockchain goes offline for maintenance

Correct Answer: 2

Question 3

Consider the following scenario. A startup is building a chat app for smart phones where the messages sent between users are anonymous and get destroyed within 24 hours of being sent.

Which architecture would best solve the product need?

AEthereum for token management and chat messages; Mobile apps use JSON-RPC to communicate directly with Smart Contracts

BPrivate blockchain to persist chat messages; Custom built token system with private blockchain smart contract

CToken management for shareholders in a public blockchain; Mobile apps and data management built on existing multitier systems without use of blockchain

DHybrid blockchain for token management with Proof of Stake; private blockchain to persist the chat messages

Correct Answer: 3

Question 4

In common blockchain design, what is one common method to ''chain'' blocks of data together in order?

AStore the hash of the previous block within the current block

BHaving the genesis node store an ordered, mutable array of block hashes

CWriting each block into a separate file on the hard disk of the node

DAssigning an order number to each block so they can be sorted when requested

Correct Answer: 4

Question 5

In any cryptographic system, the key components are: the secret, the function, the key and the _______.

ACipher

BHash

CToken

DNone of the above

Correct Answer: 5

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