Blockchain / Crypto
Quiz by HaloFi
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- Q1
Which of the following is NOT a key feature of blockchain?
Decentralization
Immutability
Centralization
30s - Q2
What is mining in the context of cryptocurrency?
Solving complex mathematical problems to create new coins.
Printing new physical currency.
Digging for physical coins in the ground.
30s - Q3
What happens when a transaction is made with Bitcoin?
The transaction disappears after a day.
The transaction is recorded on the blockchain and verified by nodes.
The transaction is stored in a central bank.
30s - Q4
What is the role of cryptography in cryptocurrency?
It makes the currency physical and tangible.
It sets the prices of cryptocurrencies.
It secures transactions and controls the creation of new units.
30s - Q5
Which of the following is an example of a cryptocurrency?
U.S. Dollar
Gold
Ethereum
30s