Blockchain quiz

What is a blockchain?

• A Currency

• A Centralized ledger

• Decentralized Ledger

• All of the above

What are the benefits of Blockchain?

• Security and Speed

• Fraud Control And Access levels

• No hidden Fees

• All of the above

Bitcoin was created by

• John McCafe

• Satoshi Nakamoto

• Elon Musk

• Vitalik Buterin

Blockchain is a type of

• View

• Table

• Programming Language

• Database

Blockchains store data in the form of

• Lines

• Circle

• Blocks

• None of the above

Some of the largest, popular Blockchains are

• Bitcoin

• Ethereum

• Hybrid

• Both Bitcoin and Ethereum

Who is a miner in Blockchain?

• Type of Blockchain

• Person doing calculations to verify a transaction

• Computer node to solve complex mathematical problems

• None of the above

What is a node in Blockchain?

• Chain of Blocks

• An Exchange

• Type of Cryptocurrency

• Computer on a Blockchain

In which year Blockchain was Invented?

• 2008

• 1995

• 2001

• 2011

What does a Block consists of?

• Transaction data

• Hash

• Prev Hash

• All of these