Blockchain - Fundamentals

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

• Samsung

• John Mcafee

• Steve Jobs

Where do you store your cryptocurrency?

• Bank Account

• Hard disk

• Software Wallet

• In pockets

Who is a miner

• A type of blockchain

• An algorithm that predicts the next part of the chain

• Computers that validate and process blockchain transactions

• A person doing calculations to verify a transaction

What is a blockchain?

• A distributed ledger on a peer to peer network

• A type of cryptocurrency

• An exchange

• A centralized ledger

What is a genesis block?

• The first block of a Blockchain

• A famous block that hardcoded a hash of the Book of Genesis onto the blockchain

• The first block after each block halving

• The 2nd transaction of a Blockchain

When a record is on a blockchain, who can access it?

• Multiple people simultaneously.

• One person at a time.

• Only the people involved in the transaction.

Once records are submitted on a blockchain, can they be altered?

• Yes – the parties can go back in and alter them at any time.

• Yes – but only within a certain time frame.

• No – they cannot be altered.

Are blockchain fully public?

• Yes

• No

• It depends