How many unique address spaces are used by applications running in kernel mode?1 point014As many as there are processes running

In kernel mode, applications do not have unique address spaces in the same way user-mode applications do. Instead, they share the same address space allocated for the kernel.

1. Kernel Mode Overview: In kernel mode, all processes run with the highest level of privilege and can access the entire memory space of the system. This includes both the kernel space and the user space.

2. Address Space in Kernel Mode: Since kernel mode applications (or kernel modules) are executed within a single kernel address space, they do not create unique address spaces for each individual application. Instead, they all share the same memory area designated for kernel operations.

3. Processes in User Mode: User-mode applications, on the other hand, each have their own unique address spaces, which are isolated from one another to prevent one application from accessing another application's memory.

4. Conclusion: Therefore, the unique address spaces in kernel mode do not correspond to the number of processes running, as all kernel-mode processes share the same address space.

Final Answer

In kernel mode, there is only one unique address space shared by all kernel-mode applications, regardless of the number of processes running.