Question 1

Which of these technical components best represents why cryptocurrency is able to operate successfully?

Options :

A : An immutable digital ledger that is validated and distributed across many peers

B : Using API calls, cryptocurrency having a direct correlation to USD exchange rates

C : High performance computing power allows cryptocurrency to be minted just as a central government might do with fiat currency

D : Blockchain cryptocurrency transactions are always public which generates user trust and adoption

Answer: A

Question 2

Which one of the following is true regarding Smart Contracts on the Ethereum blockchain?

Options :

A :

They provide added security over off-chain transaction code on other blockchain networks

B :

Because they are compiled into bytecode they cannot be used in an unintended manner

C : Any flaw discovered in their code can quickly be updated and redeployed

D : They are Turing complete and deterministic in nature

Answer: D

Question 3

Which of these desired outcomes is best obtained through a Blockchain solution?

Options :

A : Pending financial transactions need to be stored until completed and then should be deleted

B : A website that shows current data from various stock markets

C : A mobile app that displays information about today-s weather

D : None of the above

Answer: B

Question 4

What is another name for blockchains that run adjacent to the blockchains and also offer more scope for processing contracts?

Options :

A : Adchains

B : Funnelchains

C : Multichains

D : Sidechains

Answer: D

Question 5

You are considering writing a smart contract for Ethereum and would like to use a robust programming language.
Which programming language is considered the most flexible and robust for Ethereum?

Options :

A : Solidity

B : Python

C : Serpent

D : JS

Answer: A