Digital Currency (Cambridge (CIE) IGCSE Computer Science)

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  • What is digital currency?

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  • What is digital currency?

    Digital currency is a currency that only exists electronically and is stored in digital wallets or accounts, with no physical bank notes or coins.

  • True or False?

    Digital currency is controlled and monitored by central banks or government.

    False.

    Digital currency is not controlled or monitored by central banks or government (it is decentralised)

  • What is another term for digital currency?

    Digital currency can also be known as cryptocurrency.

  • What makes digital currencies highly volatile?

    Digital currencies are highly volatile because they are not controlled or monitored by central banks or government, causing their value to fluctuate rapidly in a short period of time.

  • Name two examples of digital currencies.

    Two examples of digital currencies are Bitcoin and Ethereum.

  • What is a blockchain?

    A blockchain is a digital ledger that records every transaction made with a particular digital currency.

  • True or False?

    Transactions in a blockchain can be altered after they are added.

    False.

    Transactions are added to the blockchain in a permanent and unalterable way.

  • What is the structure of a blockchain?

    A blockchain is made up of "blocks" of transactions that are linked together in a "chain" using cryptographic algorithms.

  • How are transactions in a blockchain verified?

    Each transaction in the blockchain must be verified by multiple participants in the network.

  • What is the purpose of blockchain verification?

    The verification process ensures that transactions are legitimate and prevents fraudulent activity.