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Blockchain CBBF Dumps

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Total 84 questions

Certified Blockchain Business Foundations Questions and Answers

Question 1

The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.

Options:

A.

increase the use of cryptocurrency

B.

speed up the internet

C.

make Bitcoin less expensive

D.

increase device connectivity

Question 2

Which of the following statements sums up the Proof of Work consensus process?

Options:

A.

Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.

B.

Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.

C.

All nodes agree on the data of the transaction.

D.

Miners send assets to an inactive address. This process selects the next owner of a block.

Question 3

Blockchains are being implemented in the food supply chain because_____________.

Options:

A.

consumers demand to know where their food comes from

B.

it allows farm to table accountability for safety

C.

they have the potential to provide fast, specific supplier data

D.

it prevents food waste if a food contamination problem occurs

E.

All of the above

Question 4

Which of the following are practical use cases for Blockchain?

Options:

A.

Voting

B.

A video sharing website

C.

Medical records

D.

Identity management

E.

All of the above

Question 5

How is Blockchain benefiting voting?

Options:

A.

By revealing the identity of each voter and who or what they voted for

B.

By controlling who gets to vote

C.

By only allowing a certain number of votes per person

D.

By allowing voters to trust their vote has been counted

Question 6

In a private business Blockchain, transactions are endorsed by______________.

Options:

A.

only relevant business participants

B.

only the smart contract developer

C.

all the nodes on the Blockchain

D.

all participants with access to the network

Question 7

Blockchains are being implemented in the food supply chain because ____________.

Options:

A.

Consumers demand to know where their food comes from

B.

It allows farm to table accountability for safety

C.

They have the potential to provide fast, specific supplier data

D.

It prevents food waste if a food contamination problem occurs.

E.

All of the above

Question 8

Which Blockchain protocol uses Proof of Work Consensus? Select all that apply

Options:

A.

Hyperledger

B.

Corda

C.

Bitcoin

D.

Ethereum

E.

All of the above

Question 9

How are blocks chained together?

Options:

A.

By sharing the same transaction details

B.

Information of the previous block is embedded into the current block through hashing

C.

Information of the current block is embedded into the genesis block

D.

With a physical chain

Question 10

One of the big issues that new financial transaction Blockchain solutions face is____________.

Options:

A.

increasing the number of transactions per second (TPS)

B.

the inability to find use cases

C.

solving user identity

D.

getting banks to cooperate

Question 11

Cryptocurrencies are a security regulated by the Securities and Exchange Commission.

Options:

A.

True

B.

False

Question 12

A smart contract on the Blockchain provides __________. Select all that apply

Options:

A.

Specific actions to be taken on events or transactions

B.

The same contracts a bank provides

C.

A set of business conditions that must be met

D.

Better anonymity of those making transactions

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Total 84 questions