WorksheetsBlockchain Fundamentals Quiz
Total questions: 15
Worksheet time: 8mins
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
What is a miner?
A type of blockchain
An algorithm that predicts the next part of the chain
A person doing calculations to verify a transaction
Computers that validate and process blockchain transactions
Where can you buy cryptocurrency?
A private transaction
An exchange
A Bitcoin ATM
All of the above
What is the term for when a blockchain splits?
A merger
A fork
A sidechain
A division
What is the purpose of a nonce in blockchain?
Used in Proof Of Work to get the targeted hash by adjusting
It is a hash function used in Proof Of Work
Prevents double spending
Sends information to the blockchain network
Can we use Smart Contracts in Energy Sector?
True
False
