Lesson 4

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What is the primary goal of CPU scheduling in a multi-programming environment?

To prioritize I/O over CPU processing.

To keep the CPU as busy as possible. (correct)

To ensure all processes have equal CPU time.

To allow user intervention in process execution.

Which CPU scheduling algorithm is non-preemptive and selects the next process to run based on arrival time?

Priority Scheduling

Shortest-Job-First

First-Come, First-Served (correct)

Round-Robin

In the Linux Completely Fair Scheduler, how is the time quantum for a process determined?

Based on the nice value of the process. (correct)

By a fixed time slice.

Based on process ID.

Through manual configuration by the system administrator.

What is the purpose of processor affinity in multiprocessor scheduling?

To keep a process running on the same processor to increase efficiency. Signup and view all the answers

What is the main disadvantage of the First-Come, First-Served (FCFS) scheduling algorithm?

It can lead to the convoy effect Signup and view all the answers

How does the Shortest-Job-First (SJF) scheduling algorithm determine which process to run next?

By the length of the next CPU burst Signup and view all the answers

What is a primary concern with Priority Scheduling?

The possibility of starvation Signup and view all the answers

What is Round-Robin Scheduling particularly good at improving?

Response time for time-sharing systems Signup and view all the answers

What is the effect of setting a high 'nice' value for a process in Linux?

It gives the process lower priority. Signup and view all the answers

What scheduling scope would likely be used for kernel-level threads?

System-Contention Scope (SCS) Signup and view all the answers

Using the First-Come, First-Served (FCFS) scheduling algorithm, calculate the average turnaround time for these processes.

10.53 Signup and view all the answers

Lesson 4

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