Name the tool used to repair defective memory areas by masking the address from system usage.

The tool used to repair defective memory areas by masking the address from system usage is called MemRx. This specialized software is designed to identify and manage faulty memory segments within a system. By masking these addresses, MemRx ensures that the operating system and applications do not attempt to use the defective memory, thus improving overall system stability and reliability.

Unlike MemTest, which primarily focuses on testing memory for errors rather than repairing them, MemRx actively engages in mitigation of issues once they are identified. This repair capability is crucial for maintaining optimal system performance, particularly in environments where hardware reliability is critical. Other options such as Memory Inspector and Memory Repair Tool may not be explicitly recognized industry-standard solutions for addressing memory defects in the way that MemRx does.