FREE CBE Consensus Mechanisms Questions and Answers

Question 1

What is the primary goal of consensus mechanisms in blockchain?

Accepted Answer

Achieve agreement among nodes

Answer

Encrypt data

Answer

Reduce network speed

Answer

Create user accounts

Question 2

Which consensus algorithm is used by Bitcoin?

Accepted Answer

Proof of Work

Answer

Proof of Stake

Answer

Delegated Proof of Stake

Answer

Proof of Authority

Question 3

Which of the following is a drawback of Proof of Work?

Accepted Answer

High energy consumption

Answer

Low latency

Answer

Inability to scale

Answer

Low security

Question 4

What is a key feature of Proof of Stake?

Accepted Answer

Validator chosen by staked coins

Answer

Random selection of validators

Answer

Time of participation

Answer

Amount of work completed

Question 5

Which consensus method uses a reputation system for validator selection?

Accepted Answer

Proof of Authority

Answer

Proof of Stake

Answer

Proof of History

Answer

Proof of Work

Question 6

Which blockchain consensus mechanism is designed for scalability and speed?

Accepted Answer

Delegated Proof of Stake

Answer

Proof of Elapsed Time

Answer

Proof of Work

Answer

Proof of Authority