What tool can be used to repair and ignore defective memory areas by masking addresses?

The choice of MemRx as the correct tool for repairing and ignoring defective memory areas by masking addresses is based on its specific functionality. MemRx is designed to interact with memory at a low level, providing options to identify faulty sections and effectively mask these out from use. This allows the system to continue operating by avoiding the areas that may lead to crashes or data loss due to memory errors.

Other tools mentioned do not serve the same function. For instance, a generic Diagnostics Tool usually focuses on identifying issues rather than directly repairing or masking problematic memory areas. Similarly, RAM Cleaner is primarily designed for freeing up RAM and optimizing performance by removing unnecessary processes, which does not include memory repair capabilities. Memory Fixer may suggest improvements but lacks the targeted functionality of masking defective memory addresses effectively, which is crucial for maintaining system stability in the face of hardware failures.

Therefore, MemRx stands out as the specialized solution for the specific challenge of managing defective memory areas.