Operating System Quiz 1
Quiz
•
Computers
•
University
•
Practice Problem
•
Medium
Shabnam Choudhary
Used 1+ times
FREE Resource
Enhance your content in a minute
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
Calculate average waiting time using FCFS for P1(0,6), P2(2,8), P3(4,7), P4(5,3).
Answer explanation
FCFS Order: P1 (0–6), P2 (6–14), P3 (14–21), P4 (21–24). Waiting Times: P1: 0 ms P2: 6 - 2 = 4 ms P3: 14 - 4 = 10 ms P4: 21 - 5 = 16 ms Average: (0 + 4 + 10 + 16)/4 = 7.5 ms
2.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
In RR (quantum=4ms), P1(10ms), P2(5ms), P3(8ms). What is turnaround time for P3?
Answer explanation
Execution Order: T0–4: P1 (4ms done, 6ms left) T4–8: P2 (4ms done, 1ms left) T8–12: P3 (4ms done, 4ms left) T12–16: P1 (4ms done, 2ms left) T16–17: P2 (1ms done, finishes) T17–21: P3 (4ms done, finishes). P3 completes at T=21 ms.
3.
MULTIPLE CHOICE QUESTION
3 mins • 2 pts
SRTF Scheduling: Processes P1(0,7), P2(2,4), P3(4,1). Compute number of context switches.
Answer explanation
Execution Order: T0–2: P1 T2–4: P2 (preempts P1) T4–5: P3 (preempts P2, shortest remaining time) T5–8: P2 T8–14: P1 Context Switches: P1→P2, P2→P3, P3→P2, P2→P1 → 4 switches.
4.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Priority Scheduling (Preemptive): P1(0,10,3), P2(2,5,1), P3(3,2,2). Compute average turnaround time.
Answer explanation
Execution Order: T0–2: P1 T2–7: P2 (higher priority, preempts P1) T7–9: P3 T9–19: P1 Turnaround Times: P1: 19 - 0 = 19 ms P2: 7 - 2 = 5 ms P3: 9 - 3 = 6 ms Average: (19 + 5 + 6)/3 = 10 ms
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
CPU spends 80% in user mode, 10% system calls, 5% I/O wait, 5% idle. CPU Utilization is?
Answer explanation
CPU Utilization = User Mode + System Calls = 80% + 10% = 90%. I/O wait and idle time are excluded.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which type of OS ensures critical tasks meet deadlines?
Answer explanation
Real-time OS guarantees timely execution for time-sensitive tasks.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which is TRUE about Microkernel architecture?
Answer explanation
Microkernel minimizes kernel functionality (e.g., only IPC, scheduling), moving other services (e.g., drivers) to user space.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
20 questions
Sử dụng bảng tính Excel (1-20)
Quiz
•
University
16 questions
iGCSE ICT: Software
Quiz
•
KG - University
20 questions
Ms. Office Excel
Quiz
•
University
25 questions
CSC134_Chapter 1: Introduction to Computers
Quiz
•
University
20 questions
ԹԳՀԳ 6-րդ դասարան
Quiz
•
6th Grade - University
25 questions
Data Analytics
Quiz
•
University
15 questions
Perangkat Komputer_1
Quiz
•
University
20 questions
Uji Pemahaman Literasi Digital Kelas 8
Quiz
•
8th Grade - University
Popular Resources on Wayground
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
54 questions
Analyzing Line Graphs & Tables
Quiz
•
4th Grade
22 questions
fractions
Quiz
•
3rd Grade
20 questions
Main Idea and Details
Quiz
•
5th Grade
20 questions
Context Clues
Quiz
•
6th Grade
15 questions
Equivalent Fractions
Quiz
•
4th Grade
