Please answer the 4 multiple choice questions below:

On a system that has only one CPU (can only run one thread at a time), atomic execution of a code path can be guaranteed by first disabling interrupts. If we're interested in viewing a collection of information for each active process on the system, we can use the shell command: The goals of a page replacement algorithm are to select pages for replacement that result in minimum page faults for a given load, no matter how long it takes to make the best selections. When a thread's time slice (execution quantum) expires, the thread must always leave the run state