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Question # 4

In its simplest state, a ledger_______________.

A.

determines which node stores the assets

B.

records the transfer of an asset between participants

C.

proves ownership on the Blockchain

D.

provides privacy to users on the Blockchain

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Question # 5

Blockchain 3.0 combined with the internet 3.0 will dramatically increase Blockchain use?

A.

True

B.

False

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Question # 6

Where is a Blockchain's central server?

A.

Where the Blockchain is created

B.

Located with the owner of the server

C.

There is no central server, it is distributed

D.

Orderer Node

E.

None of the above

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Question # 7

What happens if a block is confirmed at the same time?

A.

The blocks splits into two chains. Blocks are then added to each chain until one chain becomes larger. The longest chain is then considered to be the Blockchain.

B.

Nodes select which block to be added to the Blockchain

C.

Both chains are deleted, and the unconfirmed transactions are added back to the pool

D.

The Orderer Block confirms which block has the most confirmed transactions

E.

None of the above

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Question # 8

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 # 9

Blockchain applications can provide____________________.

A.

the elimination of intermediaries

B.

building more trust between trusted parties

C.

collaboration between trusted parties

D.

better cooperation between banks

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Question # 10

In 2009, Bitcoin was created by_________.

A.

Vitalik Buterin

B.

Satoshi Nakamoto

C.

Hyperledger Foundation

D.

A Banking Consortium

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Question # 11

How does a private Blockchain differ from a public one? Select all that apply.

A.

A private Blockchain does not use proof of work consensus

B.

A private Blockchain is more efficient and has faster transaction times

C.

A private Blockchain is not distributed

D.

A private Blockchain often requires the identity of users to be known

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Question # 12

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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