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  • Exam Name: Certified Blockchain Business Foundations
  • Last Update: May 18, 2024
  • Questions and Answers: 84
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CBBF Practice Exam Questions with Answers Certified Blockchain Business Foundations Certification

Question # 6

One solution to increasing Blockchain Transactions Per Second (TPS) is________.

A.

adding more network nodes

B.

off-chain transactions

C.

using faster microprocessors

D.

fewer regulations

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Question # 7

Blockchain is always distributed.

A.

True

B.

False

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Question # 8

Blockchains work best when they are____________________.

A.

combined with other technologies

B.

used for financial applications

C.

used alone

D.

used as an alternative to a database

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Question # 9

Once a record has been added to a Blockchain it can be altered.

A.

True

B.

False

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Question # 10

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

A.

increase the use of cryptocurrency

B.

speed up the internet

C.

make Bitcoin less expensive

D.

increase device connectivity

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Question # 11

Cryptocurrencies have all the same characteristics as fiat currencies?

A.

True

B.

False

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Question # 12

What does a Merkle tree provide?

A.

Efficient block lookups and protection against forgery

B.

Anonymity and transparency

C.

A Turing complete distributed network

D.

A way to deploy smart contracts onto the Blockchain

E.

All of the above

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Question # 13

A Blockchain is a/an _____________ shared ledger distributed system.

A.

Anonymous

B.

Newer version of a

C.

Append-only

D.

Confidential

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Question # 14

Which type of data can be stored on a Blockchain?

A.

A financial transaction

B.

A vote cast in an election

C.

A personal medical record

D.

Romeo and Juliet: The entire play

E.

All of the above

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Question # 15

One of Blockchain's primary uses of cryptography is ___________.

A.

Keeping the IP addresses a secret

B.

Allowing users to communicate with each other anonymously

C.

Keeping the network configuration a secret.

D.

Providing a public and private encryption key

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Question # 16

Who can read records on a public Blockchain?

A.

Everyone on the Blockchain

B.

No one

C.

Only the creator

D.

The users with access permissions

E.

None of the above

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Question # 17

____________ledger technology is referred to as DLT.

A.

Distributed

B.

Decentralized

C.

Database

D.

All of the above

E.

None of the above

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Question # 18

In 2009, Bitcoin was created by_________.

A.

Vitalik Buterin

B.

Satoshi Nakamoto

C.

Hyperledger Foundation

D.

A Banking Consortium

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Question # 19

A Blockchain provides______________.

A.

true information by all parties involved

B.

a trusted transaction between untrusted parties

C.

the easiest way to conduct international transactions

D.

only trusted banks for conducting transactions

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Question # 20

What is a hash function?

A.

A one-way function that converts input to a unique string output

B.

A function that stores data behind a key

C.

A two-way function used for condensing information

D.

The block-ID of the block

E.

All the above

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Question # 21

How much data can be represented by the data hash of a block?

A.

a maximum of 20 MB

B.

virtually any amount

C.

not to exceed 100k bytes

D.

the hash is only a memory location

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Question # 22

Which of these applications would be suited for a private Blockchain?

A.

financial transactions

B.

manufacturing supply chain

C.

medical records

D.

food traceability

E.

All of the above

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Question # 23

What are the drawbacks of using Blockchain? Select all that apply

A.

High cost of developers

B.

Changing technology and the lack of a stable standard

C.

Its use of cryptography

D.

Its use of new applications

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Question # 24

What is Ethereum?

A.

Another name for Bitcoin

B.

A platform for creating decentralized applications

C.

A currency

D.

Another name for Blockchain

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Question # 25

Blockchain transaction code categorizes the data put into blocks.

A.

True

B.

False

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