Free Blockchain CBBF Practice Exam with Questions & Answers

increase the use of cryptocurrency

speed up the internet

make Bitcoin less expensive

increase device connectivity

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

By controlling who gets to vote

By only allowing a certain number of votes per person

By allowing voters to trust their vote has been counted

A one-way function that converts input to a unique string output

A function that stores data behind a key

A two-way function used for condensing information

The block-ID of the block

All the above

To limit user access and permissions

It is less expensive to develop

It requires less mining power than a public Blockchain

It requires fewer administrators to manage it

The users

The architects

The creator of the Blockchain

The developers

True

False

the elimination of intermediaries

building more trust between trusted parties

collaboration between trusted parties

better cooperation between banks

A digital wallet

in a secure ledger

a bank account

in a secure database

True

False

A private Blockchain does not use proof of work consensus

A private Blockchain is more efficient and has faster transaction times

A private Blockchain is not distributed

A private Blockchain often requires the identity of users to be known