WorksheetsMCQ Test on Blockchain Technology
Total questions: 15
Worksheet time: 11mins
Which of the following best defines Blockchain?
A type of social media network
A centralized database managed by one company
A distributed digital ledger that records transactions
A file-sharing application
Who is credited with the creation of Bitcoin?
Vitalik Buterin
Elon Musk
Satoshi Nakamoto
Charlie Lee
What is the smallest unit of Bitcoin called?
Bit
Satoshi
CryptoCoin
ByteCoin
Which feature of blockchain ensures that recorded data cannot be easily altered?
Centralization
Immutability
Confidentiality
Flexibility
Which term refers to the process of verifying transactions on a blockchain network?
Mining
Printing
Uploading
Encoding
Stablecoins are designed to maintain value by being pegged to:
Popular stocks
Physical commodities or fiat currencies
Other cryptocurrencies only
Digital artworks
Which of the following is NOT an advantage of cryptocurrency?
Decentralization
Fast cross-border payments
Double-spending risk without blockchain
Lower transaction fees in some cases
Ethereum is primarily known for introducing which innovation?
Smart contracts
Paper wallets
Stable exchange rates
Cloud mining
Which type of blockchain is accessible to anyone without restrictions?
Private blockchain
Public blockchain
Consortium blockchain
Hybrid blockchain
What is the main purpose of a stablecoin in cryptocurrency markets?
To increase transaction speed
To provide price stability
To mine new coins faster
To hide user identity
Which of these is an example of a stablecoin?
Bitcoin (BTC)
Tether (USDT)
Dogecoin (DOGE)
Litecoin (LTC)
What does “mining difficulty” in Bitcoin refer to?
The amount of electricity used
The complexity of solving the cryptographic puzzle
The number of coins mined per day
The difficulty of storing Bitcoin
In blockchain, each “block” contains:
A single transaction only
A group of transactions, a timestamp, and a hash
Only the miner’s details
The total cryptocurrency supply
Which of the following is a feature of blockchain technology?
Transparency and traceability
Centralized control
Slow settlement for all transactions
Requires a physical server location
Which consensus mechanism is used by Bitcoin?
Proof of Authority (PoA)
Proof of Stake (PoS)
Proof of Work (PoW)
Delegated Proof of Stake (DPoS)
