Interrupts OS

What is the main advantage of the First Come First Served (FCFS) scheduling algorithm?

• Improves average wait time

• Ensures fairness

• Reduces wait times for short jobs

• Requires less overhead

Which scheduling algorithm can lead to starvation for longer processes?

• Shortest Job First (SJF)

• Shortest Remaining Time First (SRTF)

• First Come First Served (FCFS)

• Round Robin

What is the main drawback of the Shortest Remaining Time First (SRTF) scheduling algorithm?

• Not efficient overall

• Can lead to long wait times for short jobs

• Requires predicting process durations

• More overhead with frequent switching of processes

Which scheduling algorithm is known for its excellent responsiveness for interactive tasks?

• Round Robin

• Shortest Remaining Time First (SRTF)

• Shortest Job First (SJF)

• First Come First Served (FCFS)

What is the main trade-off mentioned in the text regarding scheduling algorithms?

• Fairness vs. responsiveness

• Short job completion time vs. long job completion time

• Predictability vs. unpredictability

• Efficiency vs. simplicity

When does a process move from the running to the ready state?

• When the process is waiting for I/O

• When the time slice expires

• When the process is blocked

• When the process completes its task

What is the condition necessary for a process to move from the ready to the running state?

• The process must be blocked

• The process must be waiting for I/O

• The current running process must terminate

• The process must be in the blocked state

What state does a process transition to when it is waiting for an external event like disk read or network data?

• Blocked

• Terminated

• Running

• Ready

What is the role of interrupts in the context of low-level scheduling?

• Moving a process from blocked to ready state

• Notifying the OS about blocked processes

• Selecting the next process to run

• Handling I/O operations

What does the operating system (OS) act as in the context of low-level scheduling?

• The running process

• The ready queue

• The stage manager

• The CPU