Blockchain is always decentralized.

A. True

B. False

Which item(s) make up a block header?

A. The hash of the Merkle root and the header of the previous block

B. The hash of every transaction in a specific block and the next block

C. The time stamp of the block and the genesis block hash

D. The hash of the previous block

The Ethereum Blockchain provides a/an _____________ virtual machine.

A. Windows compatible

B. energy efficient

C. Linux compatible

D. turing-complete

Once a record is stored on the Blockchain ____________.

A. the record is moved to a secure server

B. the record is stored on a central node

C. it can be changed by an authorized person

D. the record is permanent

The Blockchain combined with the Internet of Things (IoT) will dramatically ____________.

A. increase the use of cryptocurrency

B. speed up the internet

C. make Bitcoin less expensive

D. increase device connectivity

What is a node in a Blockchain? Select all that apply.

A. A block

B. Certificate Authority

C. A miner

D. A computer running on the Blockchain

The common safe place to store personal cryptocurrency is_____________.

A. A digital wallet

B. in a secure ledger

C. a bank account

D. in a secure database

Cryptocurrencies are a security regulated by the Securities and Exchange Commission.

A. True

B. False

In 2009, Bitcoin was created by_________.

A. Vitalik Buterin

B. Satoshi Nakamoto

C. Hyperledger Foundation

D. A Banking Consortium

Who governs a Blockchain?

A. The users

B. The architects

C. The creator of the Blockchain

D. The developers