Blockchain Certified Blockchain Business Foundations - CBBF 模擬練習

A. Proof of Activity

B. Proof of Work

C. Proof of Burn

D. All of the above

E. Proof of Stake

A. Fault Tolerance through distribution

B. Anonymity through cryptography

C. Immutability through hashing

D. Security through distribution

A. A miner

B. A computer running on the Blockchain

C. A block

D. Certificate Authority

A. medical records

B. food traceability

C. All of the above

D. manufacturing supply chain

E. financial transactions

A. change the orderer configuration

B. None of the above

C. There are no restrictions, a developer could just change the code

D. There is no way to change Blockchain protocol

E. A developer would need to initiate a hard fork

A. A private Blockchain is more efficient and has faster transaction times

B. A private Blockchain does not use proof of work consensus

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

D. A private Blockchain is not distributed

A. the record is permanent

B. the record is moved to a secure server

C. the record is stored on a central node

D. it can be changed by an authorized person

A. Corda

B. Hyperledger

C. Bitcoin

D. All of the above

E. Ethereum

A. better cooperation between banks

B. building more trust between trusted parties

C. collaboration between trusted parties

D. the elimination of intermediaries