Exin BLOCKCHAINF Exam Questions Instant Access

Question 1

How does Blockchain use hashing? Select all that apply.

ATo condense information making it easy to compare large amounts of data.

BTo chain together blocks

CTo provide anonymity with public key cryptography

DTo select which node to use

EAll of the above

Answer : B, D

Question 2

Blockchain is faster and more efficient than a standard database.

ATrue

BFalse

Answer : B

Question 3

Once a record is stored on the Blockchain ____________.

Athe record is moved to a secure server

Bthe record is stored on a central node

Cit can be changed by an authorized person

Dthe record is permanent
Reference can be changed by an authorized person

Answer : D

Question 4

Which type of data can be stored on a Blockchain?

AA financial transaction

BA vote cast in an election

CA personal medical record

DRomeo and Juliet: The entire play

EAll of the above

Answer : E

Question 5

Blockchain is always a better alternative to a standard database.

ATrue

BFalse

Answer : B

Question 6

How do consensus algorithms like Proof of Work or Proof of Stake incentivize miners to participate?

ABy paying miners with U.S. dollars

BBy paying the miners with cryptocurrency

CBy placing their name on the Blockchain

DBy not charging users monthly subscription costs

Answer : B

Question 7

The cryptocurrency Bitcoin is__________.

Aanother application that runs on a Blockchain

Bthe same as all other cryptocurrencies

Creplacing bartering in many parts of the world

Da replacement currency for the U.S. dollar

Answer : A

Exin Blockchain Foundation BLOCKCHAINF Exam Questions