Blockchain CBBF Exam Practice Test Instant Access

Question 1

How does the Bitcoin provide anonymity?

AThrough Merkle trees

BThrough public/private key cryptography

CThrough consensus algorithms such as Proof of Work

DBy publishing only the block address

ENone of the above

Answer : E

Question 2

How would a developer make a change to Blockchain protocol?

AThere are no restrictions, a developer could just change the code

BA developer would need to initiate a hard fork

CThere is no way to change Blockchain protocol

Dchange the orderer configuration

ENone of the above

Answer : C

Question 3

Blockchain transaction code categorizes the data put into blocks.

ATrue

BFalse

Answer : B

Question 4

A smart contract on the Blockchain provides __________. Select all that apply

ASpecific actions to be taken on events or transactions

BThe same contracts a bank provides

CA set of business conditions that must be met

DBetter anonymity of those making transactions

Answer : C

Question 5

Once a record has been added to a Blockchain it can be altered.

ATrue

BFalse

Answer : B

Question 6

How is Blockchain benefiting voting?

ABy revealing the identity of each voter and who or what they voted for

BBy controlling who gets to vote

CBy only allowing a certain number of votes per person

DBy allowing voters to trust their vote has been counted

Answer : D

Question 7

Blockchains work best when they are____________________.

Acombined with other technologies

Bused for financial applications

Cused alone

Dused as an alternative to a database

Answer : B

Blockchain CBBF BTA Certified Blockchain Business Foundations Exam Practice Test