Blockchain

What is a blockchain?

• A distributed ledger on a peer to peer network
• An exchange
• A type of cryptocurrency
• A centralized ledger

What is immutability?

• Running without the concept of “human trust”
• Majority of the nodes need to come to a consensus
• Data in a block in a blockchain cannot be tampered with
• Peer to peer digital ledger of transactions

Which industry can use blockchain technology for cybersecurity?

• Critical infrastructure
• Healthcare
• Logistics
• All of the above

What does P2P stand for?

• Password to Password

• Peer to Peer

• Product to Product

• Private Key to Public Key

Which blockchain supports smart contracts?

• Bitcoin
• Hyperledger Fabric
• Ethereum
• Corda R3

Is blockchain fully public?

• Yes
• It depends
• No

How are blockchains linked?

• Connection
• A software
• Gum
• Cryptography