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Aqa Sample Gcse Paper (GCSE Computing)

The following is a GCSE Computing test covering 'Aqa Sample Gcse Paper'
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In relational databases what uniquely identifies each record in a table?
Which of the following is a principal advantage of using hexadecimal over binary when representing large binary numbers?
If a digital sound sample uses a sample rate of 44.1 kHz and 16-bit depth in mono for 10 seconds, what is the approximate uncompressed file size in bytes? (Use bytes = sample rate × bit depth/8 × seconds)
What is the hexadecimal digit equivalent of decimal 255?
Which storage device uses magnetic platters to store data?
In pseudocode, which structure repeats a set of instructions until a condition becomes false?
Which of the following is an ethical concern specifically associated with artificial intelligence and automation?
Which one is an example of a high-level programming language?
Which normal form prevents repeating groups by ensuring each field contains only atomic values?
Which of the following is a characteristic of a compiled language?
Which definition best describes "integrity" in information security?