Understanding Cryptocurrencies and Blockchain

What is the primary reason cryptocurrencies like Bitcoin are considered secure?

• They are printed on paper.

• They are regulated by governments.

• They use blockchain technology.

• They are backed by gold.

What does 'decentralized' mean in the context of cryptocurrencies?

• Only available in certain countries.

• Controlled by a single entity.

• Not controlled by any single entity.

• Managed by central banks.

What is a 'ledger' in the context of cryptocurrency?

• A digital record of all transactions.

• A type of cryptocurrency.

• A government database.

• A physical book where transactions are recorded.

What does 'mining' in cryptocurrency refer to?

• Digging for physical coins.

• Creating new digital artwork.

• Processing transactions and securing the network.

• Investing in gold mines.

Why are cryptocurrencies like Bitcoin considered pseudonymous?

• They require personal information for transactions.

• Transactions are linked to public keys, not real-world identities.

• Transactions are linked to real-world identities.

• They are completely anonymous.

What is an NFT (Non-Fungible Token)?

• A government-issued ID.

• A new form of physical currency.

• A digital certificate of ownership for a unique item.

• A type of cryptocurrency.

What does the term 'going to the moon' refer to in cryptocurrency?

• A physical trip to the moon funded by crypto.

• Cryptocurrencies decreasing in value rapidly.

• Cryptocurrencies increasing in value rapidly.

• A new cryptocurrency launched by NASA.

What is the main environmental concern associated with cryptocurrencies?

• Use of paper in printing.

• Use of water in mining processes.

• High energy consumption due to mining.

• Pollution from physical coins.

What is the role of cryptography in cryptocurrencies?

• To secure physical vaults.

• To create physical coins.

• To make transactions public.

• To secure digital transactions.

What is the main advantage of using cryptocurrencies for international payments?

• Transactions are slower but more secure.

• Higher fees but more secure transactions.

• They require physical exchange.

• Faster transactions with lower fees.