Question

In UNIX, two per process ________ are used by the kernel to track swap space use.

a) process tables
b) swap maps
c) memory maps
d) partition maps

Answer 1

The correct answer is b) swap maps, which are used by the UNIX kernel for tracking the use of swap space for processes.

Step-by-step explanation:

In UNIX, two per process swap maps are used by the kernel to track swap space use. The correct answer to the question is option b) swap maps. Swap maps are an essential aspect of memory management in UNIX systems. They serve to map out which parts of a process's virtual memory are stored on the swap space on disk. Essentially, when the physical memory (RAM) is insufficient for the needs of all the currently running processes, the kernel starts to move inactive pages of memory to the disk space designated for swapping, allowing more active processes to use the RAM.