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CBBF Exam Dumps - Certified Blockchain Business Foundations

Question # 4

Why is Blockchain important?

A.

It allows for a secure, global, and peer to peer record of data

B.

It provides anonymity when making transactions

C.

It is a free, trusted bank

D.

It replaces all ledgers

E.

All of the above

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Question # 5

The transaction has contained in a block is the ___________.

A.

Metadata used for ID

B.

Same as the user private key

C.

Digital fingerprint of the block

D.

Unique number to show it’s a Bitcoin block

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Question # 6

What do consensus methods achieve?

A.

Anonymity in a peer to peer network

B.

The highest level of security in a database by ensuring 51% agreement of nodes on the network.

C.

The most efficient way of recording a transaction in any database.

D.

It confirms that all nodes on the network are legitimate.

E.

None of the above

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Question # 7

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

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

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Question # 8

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

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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Question # 9

In a private business Blockchain, transactions are endorsed by______________.

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

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Question # 10

Blockchain has more built-in security than a standard database.

A.

True

B.

False

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Question # 11

How would a developer make a change to Blockchain protocol?

A.

There are no restrictions, a developer could just change the code

B.

A developer would need to initiate a hard fork

C.

There is no way to change Blockchain protocol

D.

change the orderer configuration

E.

None of the above

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Question # 12

The cryptocurrency Bitcoin is__________.

A.

another application that runs on a Blockchain

B.

the same as all other cryptocurrencies

C.

replacing bartering in many parts of the world

D.

a replacement currency for the U.S. dollar

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