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Blockchain BTA Certified Blockchain Developer - Ethereum CBDE Exam Questions

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Question #1 (Topic: demo questions)

 A Hashing Algorithm is deterministic. What does it mean?

A.
 it always produces the same output given the same input.
B.
t uses equally distributed data to produce the output given a long input.
C.
it shouldn't be possible to re-generate the input given the output. 
Correct Answer: A
Question #2 (Topic: demo questions)

To get most out of the blockchain, it is best:

A.
 to use it for the whole business logic. It’s always best to have everything in once place.
B.
to use it only for things which need the benefits of the blockchain. 
Correct Answer: B
Question #3 (Topic: demo questions)

Which statement is true about the EVM?

A.
While the EVM is Sandboxed, it isn't as powerful as the Bitcoin Network, because it's not Turing Complete.
B.
The EVM can't access hardware layers or anything outside a blockchain node because it's sandboxed.
C.
The EVM is extremely powerful, turing complete and perfect for doing computational intensive things, because of the direct access to the graphics card. 
Correct Answer: C
Question #4 (Topic: demo questions)

The nonce-field in a transaction is used:

A.
to protect against replay attacks.
B.
to have an additional checksum for transactions. 
C.
to sum up all ethers sent from that address.
Correct Answer: A
Question #5 (Topic: demo questions)

Which is the right order for Denominations?

A.
 Wei, Finney, Szabo, Ether, Tether.
B.
Finney, Szabo, Mether, Gwei. 
C.
Gwei, Szabo, Finney, Ether.
Next Question
Correct Answer: C
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