Question 1

In which blockchain consensus algorithm does a user pay (give up coin forever) to participate in consensus?

Options :

A : Proof of Burn

B : Proof of Work

C : Proof of Stake

D : Proof of Activity

E : None of the above

Answer: A

Question 2

Determining if a transaction is part of the distributed ledger is less computationally intensive in DAG-based solutions than in blockchain

Options :

A : True

B : False

Answer: A

Question 3

From a business perspective, which of me following is the major consideration regarding the use of smart contract technology?

Options :

A : Public Accessibility

B : Hosting Requirements

C : Code as Law" Arbitration

D : Decentralization

Answer: C

Question 4

Which types of network attacks focus on partitioning the blockchain network? Select all that apply

Options :

A : Eclipse

B : Sybil

C : Denial of Service

D : Routing

Answer: A,B,C

Question 5

A network design where some nodes are prohibited from communicating directly with other nodes does not

compromise the security of the blockchain.

Options :

A : True

B : False

Answer: A