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WorksheetsBlockchain
Total questions: 11
Worksheet time: 11mins
Which of the following is correct?
Blockchain contains transaction data, so, it’s a replacement for databases.
Blockchain contains transaction data, it’s not a replacement for databases.
Blockchain replaces databases, messaging technology, transaction processing and business processes.
Blockchain and databases are exactly the same.
The blockchain contains verified proof of .....
transactions
earnings
names and addresses
cost and location
All blockchains are built for business only.
True
False
Blockchain owes its name to ...
the way money travels
a prisoner who was innocent
its creator, because he lived in a big block
the way it stores transaction data — in blocks that are linked together to form a chain.
Which of this is NOT a characteristic of a blockchain network?
Consensus
Immutability
Finality
Provenance
Expensive
Bitcoin and blockchain are basically the same.
True
False
Blockchain provides the means to record and store Bitcoin transactions. So, blockchain is mostly used for Bitcoin.
True, as Bitcoin is the first use case for blockchain.
False, as Bitcoin is only the first use case for blockchain.
Which of the following sentences is correct?
Bitcoins are printed like dollars or euros.
Bitcoins have central monetary authority.
Bitcoins aren’t printed like dollars or euros; they’re “mined”.
Bitcoin is issued by central banks
Everyone knows who is Satoshi Nakamoto.
True
False
Bitcoin — the digital currency launched in 2009 by ....
Satoshi Nakamoto
China
A group of hackers
The European Bank
Which of the following better describes what blockchain is?
Blockchain is a shared, immutable ledger that facilitates the process of recording transactions and tracking assets in a business network.
Blockchain is a private, mutable ledger that protects the process of recording transactions and storing assets in a business network.
Blockchain is a controlled, updatable ledger that encapsulates the process of keeping transactions secret without tracking assets in a business network.
Blockchain is a costly, protected ledger that simulates the process of formulating transactions, so it sells assets in a business network.
