220-802 · Question #371
Which of the following are true regarding Windows 32-bit versus Windows 64-bit Operating Systems? (Select TWO).
The correct answer is C. Not all CPUs are capable of running Windows 64-bit. D. Windows 64-bit can address larger amounts of RAM. Not all CPUs support the x86-64 instruction set required for 64-bit Windows, and 64-bit Windows can access far more RAM than the approximately 4 GB ceiling imposed by 32-bit addressing.
Question
Which of the following are true regarding Windows 32-bit versus Windows 64-bit Operating Systems? (Select TWO).
Options
- ACPUs that can run Windows 32-bit can also run Windows 64-bit.
- BDevice drivers for Windows 32-bit and Windows 64-bit are the same.
- CNot all CPUs are capable of running Windows 64-bit.
- DWindows 64-bit can address larger amounts of RAM.
- EWindows 64-bit is a more secure OS and less susceptible to viruses.
How the community answered
(31 responses)- B3% (1)
- C90% (28)
- E6% (2)
Why each option
Not all CPUs support the x86-64 instruction set required for 64-bit Windows, and 64-bit Windows can access far more RAM than the approximately 4 GB ceiling imposed by 32-bit addressing.
A 32-bit CPU cannot run 64-bit Windows; the 64-bit instruction set extensions are not present on a pure 32-bit processor.
Device drivers are architecture-specific - a 32-bit driver will not load in a 64-bit Windows environment and vice versa; separate driver versions are required.
64-bit Windows requires a CPU that supports the x86-64 (AMD64/Intel 64) instruction set; older 32-bit-only CPUs such as early Pentium 4 and Celeron models cannot run a 64-bit OS. This is a hardware constraint independent of the OS version chosen.
32-bit Windows is limited to a theoretical 4 GB of physical address space (with typically 3-3.5 GB accessible to applications due to OS overhead), while 64-bit Windows can address up to 128 GB or more depending on the edition, enabling significantly greater RAM utilization.
64-bit Windows is not inherently more secure or less susceptible to viruses than 32-bit Windows; security depends on patch level, configuration, and software, not address width.
Concept tested: 32-bit vs 64-bit OS CPU requirements and RAM addressing
Source: https://learn.microsoft.com/en-us/windows/win32/winprog64/the-advantages-of-64-bit-windows
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