Download GTU BE/B.Tech 2019 Summer 4th Sem New 2140702 Operating System Question Paper

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Seat No.:

GUJARAT TECHNOLOGICAL UNIVERSITY

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BE - SEMESTER-IV(NEW) - EXAMINATION - SUMMER 2019

Subject Code:2140702 Date:20/05/2019

Subject Name: Operating System

Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

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1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks

Q-1

1. What is Operating System? explain any one types of operating system

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2. Explain different states of a process with a suitable diagram
3. Explain the microkernel system architecture in detail.

Q-4

1. Explain the features of time sharing system
2. Explain process model in brief.

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3. What is thread? Explain thread Structure? And explain any one type of thread in details.

OR

1. Explain Round Robin algorithm with proper example.
2. Explain context switching.
3. What it priority inversion problem in inter process communication? How to solve it?

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Q-5

1. Explain SJF process scheduling algorithm with example

OR

1. Define the following term.
   1. Critical Section
   2. Waiting Time

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   3. Race condition
2. Briefly describe SCAN
3. How does a parent process create a child process? How does a parent process create an ordinary pipe (anonymous pipe) for communicating with child process? Write the steps.

1. What are system calls? What is application programming interface?

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2. Which schedules algorithm result in starvation?
3. Explain the use of Banker’s algorithm for multiple resources for deadlock avoidance with illustration

OR

1. Which three are Page Replacement Algorithms? Discuss it in terms of page faults.
2. What is I-node? Explain in detail.

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3. Which are the necessary conditions for Deadlock? Explain Deadlock recovery in brief.

1. Write a Shell Script to find largest among the 3 given number.
2. What is RAID? Explain in brief
3. Explain the following commands in UNIX: suid, wall, man, finger, s, cat, ps

OR

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1. What is called segmentation? How it differs from paging?
2. What is the access control list? Explain in brief.
3. What is Paging? What is Page Table? Explain the conversion of Virtual Address to Physical Address in paging.

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