A+ CPU Quiz: x86, x64 & ARM Decoded

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| Questions: 20 | Updated: Jul 2, 2026
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1. What is the purpose of CPU cache in modern processors?

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A+ CPU Quiz: X86, X64 & ARM Decoded - Quiz

This quiz evaluates your understanding of CPU Architectures (A+) across x86, x64, and ARM platforms. Learn how different processor designs handle instruction sets, memory addressing, and performance optimization. Essential knowledge for CompTIA A+ certification and IT support roles.

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2. True or False: The x64 instruction set is a direct extension of x86 with no breaking changes.

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3. Which company primarily develops ARM processor designs?

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4. In CPU architecture, 'endianness' refers to what?

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5. The x86 instruction set originated from which processor family?

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6. What does 'virtualization' technology like Intel VT-x enable on x86/x64 systems?

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7. True or False: ARM processors can only run mobile operating systems.

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8. In x86/x64 architecture, what is a 'register'?

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9. ARM64 (ARMv8) introduced which significant architectural feature?

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10. Which instruction set extension added 128-bit SIMD capabilities to x86?

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11. What is the primary difference between x86 and x64 architecture?

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12. True or False: x64 architecture is backward compatible with x86 software.

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13. Which of these is a characteristic of ARM architecture?

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14. What does the term 'pipelining' refer to in CPU architecture?

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15. ARM processors are designed with which primary design goal?

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16. What is the maximum addressable memory in native x86 (32-bit) architecture?

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17. How many general-purpose registers does x64 architecture provide?

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18. X86 processors follow which instruction set philosophy?

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19. What does RISC stand for in processor architecture?

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20. Which architecture is most commonly used in mobile devices and tablets?

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What is the purpose of CPU cache in modern processors?
True or False: The x64 instruction set is a direct extension of x86...
Which company primarily develops ARM processor designs?
In CPU architecture, 'endianness' refers to what?
The x86 instruction set originated from which processor family?
What does 'virtualization' technology like Intel VT-x enable on...
True or False: ARM processors can only run mobile operating systems.
In x86/x64 architecture, what is a 'register'?
ARM64 (ARMv8) introduced which significant architectural feature?
Which instruction set extension added 128-bit SIMD capabilities to...
What is the primary difference between x86 and x64 architecture?
True or False: x64 architecture is backward compatible with x86...
Which of these is a characteristic of ARM architecture?
What does the term 'pipelining' refer to in CPU architecture?
ARM processors are designed with which primary design goal?
What is the maximum addressable memory in native x86 (32-bit)...
How many general-purpose registers does x64 architecture provide?
X86 processors follow which instruction set philosophy?
What does RISC stand for in processor architecture?
Which architecture is most commonly used in mobile devices and...
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