Recent questions tagged process-scheduling

A system uses two feedback queues:$\text{Q1}$: Round Robin with time quantum $10$ ms $\text{Q2}$: Shortest Job First $\text{Q1}$ has higher priority than $\text{Q2}$ New ...

SJF suffers from convoy effect ? It states "SJF will not preempt a current long job that arrives before shorter jobs." So please clarify this whether SJF suffers from con...

Four processes arrive at time $0$ in the following order:$P_1,\ P_2,\ P_3,\ P_4$Their CPU burst times are:$P_1=8$$P_2=4$$P_3=2$$P_4=1$Calculate the difference between the...

Which of the following statements are correct?The CPU dispatcher determines the policy for which process should be run and when. With cooperative multitasking, it is poss...

Consider the following set of processes assumed to have arrived at time $0$ in order $P_{1}, P_{2}, P_{3}, P_{4}$ and $P_{5}$ with the length of CPU burst given in Millis...

Consider a disk queue with requests for I/O to blocks on cylinders $98,183,37,122,14,124,65,67$ in that order. If the disk head is initially at cylinder $53$. Using SSTF ...

Match the LIST-I with LIST-IILIST-ILIST-IIA.Short term schedulerI.Determine which process are added to the system for execution level place them in ready queueB.Medium te...

Which one of the following CPU scheduling algorithms cannot be preemptive?Shortest Remaining Time First (SRTF) SchedulingFirst Come First Serve (FCFS) SchedulingRound Rob...

Consider a CPU that has to execute two types of processes. The first type, Actuators (A), requires a CPU burst of $6$ seconds. The second type, Controllers (C), requires ...

A CPU executes two types of processes.Type 1: Actuator (A), requires a CPU burst time of $6$ seconds.  Type 2: Controller (C), requires CPU burst time of $8$ seconds.New...

For the following list of processes, the average turnaround time and average waiting time using FCFS algorithm is:ProcessArrivalTime(ms)Execution Time(ms)$\text{P1}$$6$$2...

Operating systems must provide a mechanism for parent processes to create new child processes. Which of the following statements is true when a parent process creates new...

[MSQ]1. Producer Consumer problem has .(a) Competition (b) Co-operation(c) Inconsistency (d) Data loss 

Consider the following table about processes, their burst time and arrival time$\begin{array}{|c|c|c|} \hline \textbf{Process} & \textbf{Burst Time} & \textbf{Arrival Tim...

What shall be the average waiting time per process if we know that $10$ processes (on average) arrive every second and there are normally $20$ processes in the queue?$03$...

Once the process is allocated CPU and executing which of the following events could not occur?The process could issue an I/O request and then be placed in the Ready Queue...

Consider the following disc Queue with requests for I/O to block on cylinders:$45,81,185,33,175,99,150,77$(Consider that the head starts from location $58$)What will be t...

Given the following processes with their times and priority (lower number indicates higher priority)$\begin{array}{|c|c|c|} \hline \textbf{Process} & \textbf{Burst Time} ...

Which of the following does not interrupt a running process?DeviceTimerSchedulerPower Failure

Consider the following set of processes with the arrival time and length of CPU Burst time given in milli-seconds ($\mathrm{ms}$):$\begin{array}{|c|c|c|} \hline \textbf{P...