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Digital Currency (GCSE Computing)

The following is a GCSE Computing test covering 'Digital Currency' from the broader topic 5. The Internet And Its Uses. The test is geared towards the CAMBRIGE-IGCSE exam board style syllabus.
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Question 1
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Below a typical questions that will be covered in this test. You final score will be logged on your account

What is a “node” in a cryptocurrency network?
Which option describes a “cold wallet”?
Why are private keys essential for cryptocurrency security?
What does “double spending” refer to in digital currency systems?
What is a “hot wallet”?
How can users reduce the risk of losing access to their cryptocurrency?
Which regulatory concern is commonly raised about widespread cryptocurrency use on the internet?
What is the main difference between a fiat currency and most cryptocurrencies?
What does KYC (Know Your Customer) typically require when using regulated crypto services?
Which of the following best describes a digital wallet?
What is the usual name for a purely digital form of money that can be used online and is not issued by a central bank?