PYQ – OPERATING SYSTEM (2418302) | SEMESTER 3RD (2ND YEAR) | Year 2022

Operating System 2023 OLD PYQ.

Group A

Choose the most suitable answer from the following options: -   (1*20=20)

(i) With paging there is no ______ fragmentation.

(a) Internal

(b) External

(c) Both (a) and (b)

(d) Neither (a) and (b)

(ii) What are the common security threats?

(a) File shredding

(b) File sharing and permission

(c) File corrupting

(d) File integrity

(iii) Which of the following is not an operating system?

(a) Windows

(b) DOS

(c) Oracle

(d) Linux

(iv) If the size of page is increased then internal fragmentation also

(a) Increase

(b) Decrease

(c) Remain constant

(d) None of the above

(v) Which of the following operating system does not implemented multitasking truly?

(a) Windows NT

(b) Windows XP

(c) MS DOS

(d) Windows 98

(vi) Which of the following is not a page replacement algorithm?

(a) FIFO

(b) LRU

(c) MRU

(d) LILO

(vii) A solution to the problem of external fragmentation is

(a) Compaction

(b) Large memory space

(c) Smaller memory space

(d) None of the mentioned

(viii) Concurrent access to shared data may result in

(a) Data consistency

(b) Data insecurity

(c) Data inconsistency

(d) None of the mentioned

(ix) Which of the following do not belong to queue for processes?

(a) Job queue

(b) PCB queue

(c) Device queue

(d) Ready queue

 
(x) A process control block does not contains

(a) Code

(b) Stack

(c) Bootstrap program

(d) Data

 
(xi) Which of the following is not the state of a process?

(a) New

(b) Old

(c) Waiting

(d) Running

(xii) For sharable resources. Mutual exclusion-

(a) is required

(b) is not required

(c) May be or may not be required

(d) None of above

(xiii) A solution to the problem of external fragmentation is

(a) Large memory size

(b) Compaction

(c) Smaller memory size

(d) None

(xiv) What is the maximum length of the filename in DOS?

(a) 4

(b) 5

(c) 8

(d) 12

 
(xv) When was the first OS developed?

(a) 1948

(b) 1949

(c) 1950

(d) 1951

(xvi) Which of the following is the extension of Notepad?

(a) .txt

(b) .xis

(c) .ppt

(d) .bmp

(xvii) What else is a command interpreter called

(a) Prompt

(b) Kernel

(c) Shell

(d) Command

(xviii) BIOS is used?

(a) By OS

(b) By compiler

(c) By interpreter  

(d) By application software

(xix) What is the mean of the booting in the OS?

(a) Restarting computer

(b) Install the program

(c) To scan

(d) To turn off

(xx) What is bootstrapping called?

(a) Cold boot

(b) Cold hot boot

(c) Cold hot strap

(d) Hot boot

 

Group:-"B"

➥ Answer all Five Questions: -                         (5*4=20) 

 

2. Explain different types of operating system in detail.

OR

Define system program. Explain in brief with example.

 

3. What do you mean bye Deadlock? What are necessary conditions for deadlock?

OR

Explain direct and indirect communication of message passing?

 

4. Explain difference between time sharing and multi-operating system. 

OR

Explain short term scheduler.

 

5. List any three operating system. What are the advantages of Linux operating system?

OR

Explain segmentation in brief.

 

6. Explain semaphore in detail. 

OR

What are the two option of breaking deadlock?

 

Group:- "C"

➥ Answer all Five Questions: -                         (5*6=30) 

 

7. Explain memory management in operating system with the help of example.

OR

 

Explain concept of virtual memory? Also discuss its advantages.

 

8. Explain different deadlock handling strategies. What do you mean by safe and unsafe state?

OR

Explain the following:

a) File type

b) File attributes

c) File operation.

 

9. What are different functions of operating system? Explain each function in detail with example.  

OR

Explain critical section problem in detail.

 

10. Explain FIFO and LRU page replacement algorithm with the help of example.  

OR

Explain different methods to recover deadlock?

 

11. Write short notes on following:

a) Disk scheduling algorithm

b) Parallel processor 

OR

Write short note on:

a) Process management

b) Disk scheduling

 

 

 

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