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Blockchain CBBF Certified Blockchain Business Foundations Exam Practice Test

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Total 84 questions

Certified Blockchain Business Foundations Questions and Answers

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Question 1

Cryptocurrencies have all the same characteristics as fiat currencies?

Options:

A.

True

B.

False

Question 2

The common safe place to store personal cryptocurrency is_____________.

Options:

A.

A digital wallet

B.

in a secure ledger

C.

a bank account

D.

in a secure database

Question 3

____________ledger technology is referred to as DLT.

Options:

A.

Distributed

B.

Decentralized

C.

Database

D.

All of the above

E.

None of the above

Question 4

How does Blockchain use hashing? Select all that apply.

Options:

A.

To condense information making it easy to compare large amounts of data.

B.

To chain together blocks

C.

To provide anonymity with public key cryptography

D.

To select which node to use

E.

All of the above

Question 5

The height of a block is the______________ in the chain between it and the genesis block.

Options:

A.

metadata that is

B.

number of blocks

C.

Merkle tree hash

D.

size of the memory cache

Question 6

Blockchain is faster and more efficient than a standard database.

Options:

A.

True

B.

False

Question 7

What is dApp?

Options:

A.

A decentralized application

B.

A dishonest application

C.

A decoded application

D.

A distributed application

Question 8

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 9

How do consensus algorithms like Proof of Work or Proof of Stake incentivize miners to participate?

Options:

A.

By paying miners with U.S. dollars

B.

By paying the miners with cryptocurrency

C.

By placing their name on the Blockchain

D.

By not charging users monthly subscription costs

Question 10

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 11

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 12

The transaction hash contained in a block is the______________.

Options:

A.

unique number to show it’s a Bitcoin block

B.

same as the user private key

C.

digital fingerprint of the block

D.

metadata used for ID

Page: 1 / 8
Total 84 questions