Question 1

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

Answer: A

Question 2

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

Options :

A : True

B : False

Answer: B

Question 3

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

Answer: D

Question 4

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

Options :

A : True

B : False

Answer: B

Question 5

Transactions per second (TPS) for a Proof-of-Work Blockchain are approximately?

Options :

A : 24K per second

B : 175K per second

C : Only limited to the number of nodes on the network

D : 7-15 per second

E : None of the above

Answer: D