In order to execute a getpid system call, what interrupt should a process execute?

If the scheduler is running MLFQ with 3 queues – high, middle, and low – and the timeslice for each queue is 1 second with no boosting, what will the queues look like after 6 timesteps have completed with the above workload?  Each queue uses the same tie breaker policy as indicated above.

Recall the initial rules for MLFQ are: If Priority(A) > Priority(B) then A runs If Priority(A) == Priority(B) then A&B run in RR Jobs start at top priority If a job uses its whole time slice then it is demoted These initial rules had several problems and needed to be changed.  What is one problem with these initial rules and the modification that was made to correct for this problem?

The PCB holds the most recent instruction pointer of a process while it is actively running on the CPU.

A workload of 5  jobs is being scheduled on a single-cpu system with a timeslice of 1 second.  The jobs do not perform any IO, just compute.  The jobs’ arrival times and lengths are shown in the table below.  If the scheduler has a choice the job that arrives earlier is selected.  If there still is a choice the job that comes first alphabetically is selected.

If your goal is to minimize turnaround time, which non-preemptive algorithm should you choose?

If the scheduler is running the SJF algorithm, what is the average response time of this workload?

In the cooperative approach to limited direct execution, the scheduler waits for a process to perform a system call or voluntarily give up the CPU.

A patient is diagnosed with chronic obstructive pulmonary disease (COPD) and increased pulmonary vascular resistance. Related to the pathophysiology of this condition, which type of heart failure could result from this condition?

When discussing childhood cancer, the nurse would be correct in identifying the  ______________ as the origin of most childhood cancers.