TestOut LabSim A+ Certification Practice Exam

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What is the most important consideration when building a system that supports 6 GB of memory?

32-bit processor
64-bit processor
Dual-channel memory configuration
High-speed RAM

The correct answer is: 64-bit processor

When building a system that supports 6 GB of memory, the most important consideration is utilizing a 64-bit processor. The reason for this is that a 32-bit processor has a theoretical limit of addressing only up to 4 GB of RAM. In practice, the maximum usable memory is even less due to reserved addresses for system resources and hardware. This limitation makes it impossible for a 32-bit system to utilize 6 GB of memory effectively. A 64-bit processor, on the other hand, can address vastly larger amounts of RAM—up to 16 exabytes theoretically. This capability makes it suitable for systems requiring more than 4 GB of memory. Therefore, choosing a 64-bit processor is essential for supporting 6 GB of RAM properly, allowing the operating system and applications to access more memory for improved performance and multitasking capabilities.