EXIN Blockchain Foundation - BLOCKCHAINF Exam Practice Test

Question 1

Cryptocurrencies have all the same characteristics as fiat currencies?

A. True

B. False

Correct Answer: B

Question 2

In 2009, Bitcoin was created by_________.

A. Satoshi Nakamoto

B. VitalikButerin

C. A Banking Consortium

D. Hyperledger Foundation

Correct Answer: A

Question 3

A Blockchain is a/an _____________ shared ledger distributed system.

A. Newer version of a

B. Anonymous

C. Confidential

D. Append-only

Correct Answer: B

Question 4

Blockchain transaction code categorizes the data put into blocks.

A. True

B. False

Correct Answer: B

Question 5

What is a block?

A. A list or record of data

B. A pool of unconfirmed transactions

C. A wallet that stores digital currency

D. A list or record of certificates

E. All of the above

Correct Answer: A

Question 6

The height of a block is the______________ in the chain between it and the genesis block.

A. size of the memory cache

B. Merkle tree hash

C. number of blocks

D. metadata that is

Correct Answer: C

Question 7

Which of the following statements sums up the Proof of Work consensus process?

A. Miners complete to find a nonce results in a hash that starts with a predetermined number of leading zeros.

B. Miners put up a stake. A miner is then selected based on stake value to add a new block to the chain. If a miner adds an invalid block to the chain, that miner loses their stake.

C. Miners send assets to an inactive address. This process selects the next owner of a block.

D. All nodes agree on the data of the transaction.

Correct Answer: D

Question 8

How is Blockchain benefiting voting?

A. By only allowing a certain number of votes per person

B. By allowing voters to trust their vote has been counted

C. By controlling who gets to vote

D. By revealing the identity of each voter and who or what they voted for

Correct Answer: B

Question 9

Blockchains work best when they are____________________.

A. used as an alternative to a database

B. used alone

C. used for financial applications

D. combined with other technologies

Correct Answer: C

EXIN Blockchain Foundation - BLOCKCHAINF Exam Practice Test

Latest Update

Useful Links

Contact Us