OS Important questions unit wise
Operating System study material - Question banks are listed for students and learners, to make perfect utilization and score maximum marks with Operating System question bank collection. Useful for all University Exam. ( GTU, 3330701 gtu paper, 2140702 (OS), cs8493, VTU )
Unit 1: Operating System Concepts Question Bank |
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SR. NO |
QUESTIONS | Marks |
1 |
What is an operating system? List and explain the functions of operating systems. | 1+3 |
2 |
Differentiate between Batch Operating System and Time Sharing Operating System? | 4 |
3 |
Summarize booting process of windows operating system | 4 |
4 |
Advantages and Disadvantages of real time Operating system | 3 |
5 |
List out types of operating system. Explain operating system services. | 1+3 |
6 |
Explain multiprogramming operating system | 4 |
7 |
Explain Real time operating system | 4 |
8 |
Differentiate multi programming and multi-processing OS. | 4 |
9 |
Explain Batch Operating System. | 4 |
10 |
Explain time sharing OS. | 4 |
11 |
Differentiate between hard real time systems and soft real time systems. | 4 |
12 |
Illustrate with an example about OS as a a resource Manager | 4 |
13 |
List out services of Operating system from user point of view.. | 3 |
14 |
List out services of Operating system from system point of view. | 3 |
Install Android App | Operating System - All In One
Unit 2: Processor & Process Management Question Bank |
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SR. NO |
QUESTIONS | Marks |
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1 |
Give definition of : Process, Program, Scheduler | 3 |
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2 |
Explain process state diagram. ( Explain process life cycle ) | 4 |
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3 |
Write down short note on PCB (What data structure is used by an operating system to keep track of process information? Explain) | 4 |
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4 |
Write down difference between preemptive scheduling and Non-Preemptive scheduling. | 3 |
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5 |
Define Following Terms: (1)Throughput (2) Turn Around Time (3) Waiting Time (4) Response Time |
4 |
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6 |
Differentiate between Process and Program. | 4 |
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7 |
Explain cpu - bound process and i/o-bound process with example. | 3 |
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8 |
Explain scheduling queues with diagram. | 3 |
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9 |
Differentiate long term scheduler and short term scheduler and medium term Scheduler. | 4 |
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10 |
Write short note: context switch | 3 |
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11 |
Write short note on SJF scheduling algorithm | 4 |
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12 |
Explain FCFS with example and advantages. | 4 |
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13 |
Explain SRTN with example and disadvantages. | 4 |
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14 |
Explain round robin algorithm with example. | 4 |
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15 |
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4+4+4 |
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16 |
Explain all process scheduler in process management. | 2+2+2 |
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17 |
Explain different performance criteria to compare performance of various scheduling algorithms ? Explain them | 3 |
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18 |
Differentiate CPU-bound Process and I/O bound Process. | 3 |
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19 |
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4+4+2 |
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20 |
Explain Inter process communication (IPC) and issues related to IPC. | 3 |
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21 |
How to deal with deadlocks. | 4 |
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22 |
Define critical section and Mutual exclusion. | 4 |
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23 |
Differentiate : Independent Process v/s Cooperating Process | 4 |
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24 |
What is resources ? Explain Resource Allocation Graph with example. | 1+4 |
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25 |
Differentiate : SJF v/s SRTN scheduling algorithm | 4 |
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26 |
What is IPC ? Explain process synchronization in detail. | 1+3 |
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27 |
Explain Race condition with suitable example. | 4 |
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28 |
What is monitor ? How it is useful in inter process communication ? | 2+3 |
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29 |
What is deadlock ? What are the various ways/condition to deal with deadlocks ? | 2+3 |
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30 |
Differentiate between Preemptable and Non preemptable resources | 3 |
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31 |
Describe Deadlock prevention | 3 |
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32 |
Calculate Average Waiting time and Average TAT Using FCFS algorithm for
given schedule: |
3 |
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Unit 3: Memory Management Question Bank |
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SR. NO |
QUESTIONS | Marks |
1 |
What is Memory Management Unit? Explain functionalities of memory management unit. | 1+3 |
2 |
Explain memory relocation and protection in detail | 4 |
3 |
Explain memory hierarchy in detail with diagram. | 3 |
4 |
Write down the difference between Logical and Physical Address. | 3 |
5 |
Explain Memory Management with Dynamic-Partitions. | 4 |
6 |
Explain Memory Management with Fixed Partitions. | 4 |
7 |
Write short note on Fragmentations. | 4 |
8 |
Differentiate external fragmentation v/s internal fragmentation. | 4 |
9 |
Explain Virtual Memory. | 3 |
10 |
Explain inverted page table. | 4 |
11 |
Explain Paging memory management technique. | 4 |
12 |
Explain segmentation memory management technique. | 4 |
13 |
Write short note on demand paging | 4 |
Unit 4: File Management Question Bank |
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SR. NO |
QUESTIONS | Marks |
1 |
What are file attributes? Explain various file attributes. | 1+3 |
2 |
Give difference between linked allocation and indexed allocation. | 4 |
3 |
Explain physical structure of hard disk. | 3 |
4 |
Explain different file access methods. | 3 |
5 |
List various Directory operations and describe each in detail. | 3 |
6 |
List disadvantages of single level, Two Level and Acyclic graph directory. | 4 |
7 |
Explain logical structure of Disk organization. | 4 |
Unit 5: Linux Basics Question Bank |
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SR. NO |
QUESTIONS | Marks |
1 |
Explain features/characteristics of Linux operating system | 3 |
2 |
Explain Linux architecture/layered structure | 3 |
3 |
Explain: Kernel, Shell and System calls | 3 |
4 |
Explain directory structure used by Linux | 3 |
5 |
Explain Filters and Pipes | 4 |
6 |
Explain Following Commands a) chmod b) cat c) kill d) grep e) wc f) cp g) comm h) head i) diff j)man k)cmp m)pwd n) rm |
13 |
7 |
Write the shell script for the following: 1) To find maximum out of two numbers. 2) To check whether the given number is odd or even. 3) to display the sum of the first 10 positive integer numbers. 4) To reverse the given input number. |
4+4+4+4 |
8 |
Explain shell and shell variables with examples. | 4 |
9 |
What is shell script? Explain in detail | 4 |
10 |
Write short note on Branching in shell programming | 4 |
11 |
Write a shell script to find the addition of three numbers. | 4 |
12 |
Write a shell script to find minimum from three numbers. | 4 |
13 |
Write a shell script to find factorial of given number. | 4 |
14 |
Write a shell script to concate two strings and find the length of the resultant string | A |
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Operating System tutorial and Notes - Best Collection
Topic : Security & Protection Questions
1. Explain the Trojan Horse and Trap doors program threats.
2. Explain the goals of Operating System Security.
3. List Strategies of strong password.
4. Explain Authentication based on password.
5. Define Term Granularity.
Topic: I/O Management Question bank
1. What is called device driver? Explain its function in brief.
2. What is RAID? Explain in brief
3. Disk requests come in to the disk driver for cylinders 10, 22, 20, 2, 40, 6, and 38, in that order. A seek takes 6 msec per cylinder moved. How much seek time is needed for
1. First-come, first served2. Elevator algorithm. (initially moving upward)In all cases, the arm is initially at cylinder 20.
4. Write short note: RAID levels.
5. Explain SSTF and LOOK disk scheduling algorithms.
6. Explain the goals of I/O software.
7. Explain any three Disk Arm Scheduling algorithms with suitable illustrations.
8. SCSI stands for _________________
9. Define: rotational latency
10. Write a short note on DMA.
11. Suppose Disk drive has 300 cylinders. The current position of head is 90.
The queue of pending request is36,79,15,120,199,270,89,170Calculate head movement for the following algorithms.1. FCFS 2. SSTF
12. The _____ keeps state information about the use of I/O components.
a. CPUb. OSc. Shelld. Kernel
13. Briefly describe SCAN.
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