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Number bases

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Question 16

Select two statements from the list below that correctly describe the advantages or characteristics of using hexadecimal representation in computer systems.

  • A: Converting a program's machine code into hexadecimal format allows the CPU to execute instructions at a higher clock speed.
  • B: A single hexadecimal digit corresponds exactly to a group of four binary bits (a nibble), allowing simple and direct conversion between the two bases.
  • C: Storing data as hexadecimal characters in a file reduces the physical storage space required on a solid-state drive (SSD) compared to storing it as binary.
  • D: Utilizing hexadecimal representation reduces the frequency of human transcription errors when working with long binary sequences, such as MAC addresses or color codes.
  • E: Data packets sent over wireless networks experience fewer transmission errors when encoded in hexadecimal compared to binary.
  • F: A 16-bit register can store a wider range of numerical values if the values are represented in hexadecimal rather than binary.
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Markscheme

Number bases Questions

  1. GCSE
  2. /Computer Science
  3. /Number bases

27 exam-style questions on AQA GCSE Computer Science Number bases. Each one has a worked solution and a mark scheme showing where the marks go.

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