CompTIA
220-802 · Question #481
220-802 Question #481: Real Exam Question with Answer & Explanation
The correct answer is C: Able to access a larger amount of RAM memory. The primary practical advantage of a 64-bit processor over a 32-bit processor is the ability to address a vastly larger amount of physical RAM, overcoming the 4GB ceiling of 32-bit addressing.
Question
Which of the following is an advantage of installing a 64-bit processor versus a 32-bit processor?
Options
- AUses less bandwidth on the front side bus
- BOnly requires half of the clock speed
- CAble to access a larger amount of RAM memory
- DAble to be used as two 32-bit processors
Explanation
The primary practical advantage of a 64-bit processor over a 32-bit processor is the ability to address a vastly larger amount of physical RAM, overcoming the 4GB ceiling of 32-bit addressing.
Common mistakes.
- A. A 64-bit processor uses wider data paths, which can increase bus bandwidth rather than decrease it, and the front-side bus width is a separate architectural characteristic.
- B. The bit-width of a processor has no direct relationship to the required clock speed - 64-bit and 32-bit processors at the same generation run at similar clock rates.
- D. A 64-bit processor functions as a single unified processing unit and cannot be logically divided into or operate as two independent 32-bit processors.
Concept tested. 64-bit vs 32-bit RAM addressability advantage
Reference. https://learn.microsoft.com/en-us/windows/win32/winprog64/the-advantages-of-64-bit-windows
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