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220-802 · Question #855

A user would like to purchase a computer with 8GB of memory installed and recognized by the operating system. Which of the following operating systems could be installed on the computer to meet…

The correct answer is B. Windows 7 Professional 64-bit D. Windows Vista Business 64-bit. 32-bit operating systems cannot address more than approximately 4GB of RAM (with only ~3.2GB usable), so only 64-bit editions can recognize and use a full 8GB.

Hardware

Question

A user would like to purchase a computer with 8GB of memory installed and recognized by the operating system. Which of the following operating systems could be installed on the computer to meet their requirements? (Select TWO).

Options

  • AWindows 7 Home Premium 32-bit
  • BWindows 7 Professional 64-bit
  • CWindows XP Professional 32-bit
  • DWindows Vista Business 64-bit
  • EWindows Vista Enterprise 32-bit

How the community answered

(43 responses)
  • A
    2% (1)
  • B
    88% (38)
  • C
    2% (1)
  • E
    7% (3)

Why each option

32-bit operating systems cannot address more than approximately 4GB of RAM (with only ~3.2GB usable), so only 64-bit editions can recognize and use a full 8GB.

AWindows 7 Home Premium 32-bit

Windows 7 Home Premium 32-bit is limited to 4GB addressable RAM and will only recognize approximately 3.2GB due to hardware memory mapping overhead.

BWindows 7 Professional 64-bitCorrect

Windows 7 Professional 64-bit supports up to 192GB of RAM, well above the 8GB requirement, allowing the OS to recognize all installed memory.

CWindows XP Professional 32-bit

Windows XP Professional 32-bit has a 4GB address space ceiling and typically recognizes only around 3.2GB of installed RAM.

DWindows Vista Business 64-bitCorrect

Windows Vista Business 64-bit supports up to 128GB of RAM, also satisfying the requirement for full 8GB recognition.

EWindows Vista Enterprise 32-bit

Windows Vista Enterprise 32-bit shares the same 4GB address space limitation as all 32-bit Windows editions and cannot recognize 8GB.

Concept tested: 32-bit vs 64-bit OS RAM addressing limits

Source: https://support.microsoft.com/en-us/topic/ram-limits-for-windows-versions-de2f20cc-7ed2-4d17-9d86-5e0c2ee21001

Topics

#64-bit OS#RAM addressing limits#Windows editions#memory support

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