Question 1

In common blockchain design, identity and transaction approval is possible through:

Options :

A : AES encryption

B : Public key cryptography

C : Secret key cryptography

D : None of the above

Answer: D

Question 2

What is the language that Solidity is using to build on the Ethereum Virtual Machines(EVM)?

Options :

A : .Net

B : Javascript

C : C++

D : Node.js

E : PHP

Answer: B

Question 3

The fabric framework is implemented on ______programming language.
What programming language?

Options :

A : Go

B : Python

C : Node.js

D : Java

E : JS

Answer: A

Question 4

What is the accepted best practice for preventing contract addresses from changing when a new contract is released?

Options :

A : Move your contract to a new blockchain

B : Delete the old contract and add the new version in its place

C : Addresses always change so use a calling contract

D : Use the ''- -addressForce'' parameter when releasing a new contract

Answer: D

Question 5

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

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