What is a blockchain?

• A distributed ledger on a peer to peer network

• A type of cryptocurrency

• An exchange

• A centralized ledger

Each block of a Blockchain consists of which of the following?

• A hash pointer to the previous block

• Timestamp

• List of transactions

• All of the above

Which of the following is first distributed blockchain implementation?

• Bitcoin

• Ethereum

• Dogcoin

In blockchain, blocks are linked ________?

• Backward to the previous block

• Forward to next block

• Not linked with each other

A block in the blockchain can never have more than one parent block?

• False

• True

Blockchain forks can result in which of the following?

• Multiple parent blocks

• Multiple children blocks

 Which of the following is asymmetric encryption Algorithm?

• Blowfish

• Twofish

• RSA

• Tripple DEA

What does P2P stand for?

• Password to Password

• Peer to Peer

• Product to Product

• Private Key to Public Key

What is a node?

• A type of cryptocurrency

• A Blockchain

• A computer on a Blockchain network

• An exchange

Who created Bitcoin?

• Satoshi Nakamoto

• Nick Szabo

• John Mcafee

• Ada Lovelace