SK0-004 · Question #443
An administrator is unable to install a 64-bit OS on a newly purchased server. Which of the following is the MOST likely cause of this issue?
The correct answer is C. The server has the wrong architecture. A 64-bit operating system requires a processor with a 64-bit architecture; installing it on a 32-bit architecture server will fail regardless of core count, processor count, or memory.
Question
An administrator is unable to install a 64-bit OS on a newly purchased server. Which of the following is the MOST likely cause of this issue?
Options
- AThe server has the wrong number of processors
- BThe server has the wrong number of cores
- CThe server has the wrong architecture
- DThe server has the wrong amount of memory
How the community answered
(39 responses)- A3% (1)
- B8% (3)
- C87% (34)
- D3% (1)
Why each option
A 64-bit operating system requires a processor with a 64-bit architecture; installing it on a 32-bit architecture server will fail regardless of core count, processor count, or memory.
The number of physical processors does not determine OS bitness compatibility; a single 64-bit processor is sufficient to install a 64-bit OS.
Core count affects performance and parallelism but has no bearing on whether a 64-bit OS can be installed.
A 64-bit OS requires the underlying CPU to support the x86-64 (AMD64/Intel 64) instruction set architecture. If the server contains a 32-bit (x86) processor, the OS installer will detect an incompatible architecture and refuse to proceed. This is a fundamental hardware compatibility requirement that cannot be worked around by adjusting other resources.
While a 64-bit OS has minimum memory requirements, insufficient RAM produces a different error and is not the most likely cause of a complete installation failure on new hardware.
Concept tested: CPU architecture compatibility with 64-bit OS
Source: https://learn.microsoft.com/en-us/windows-hardware/design/minimum/minimum-hardware-requirements-overview
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