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 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 3

Secure Hash Algorithm (SHA-256) output is always 256 bits or 32 bytes in length regardless of the length of the input (even if input is millions of bytes). Select best answer.

Options :

A : NSA is spying on us so what-s it matters.

B : Depends on input

C : False

D : True

Answer: D

Question 4

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 5

When developing in Ethereum which is considered to be an In-Memory Blockchain simulations for rapid development?

Options :

A : Cpp-ethereum

B : Geth

C : TestRPC

D : Parity

Answer: C

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