Punjab Technical University 2009-4th Sem B.Tech Computer Science and Engineering (th) OPERATING SYSTEM ( ) Regular SUBJECT CODE, : CS-2O2 - Question Paper

Roll No.
Total No. of ques. : [09] [Total No. of Pages : 02]


B.Tech. (Sem-4th)
OPERATING SYSTEM
SUBJECT CODE : CS-2O2
Paper ID : [AO458]
[Note : Please fill subject code and paper ID on OMR]


Time : 03 Hours Maximum Marks : 60

Instruction to Candidates:
1) part - A is Compulsory.
2) Attempt any 4 ques. from Section- B.
3) Attempt any 2 ques. from Section- C

Section - A (10x2=20)
Q1) a) What is a real time operating system?
b) List any 5 functions of operating system.
c) provide any 1 difference ranging from a process and a thread.
d) discuss best fit and worst fit algorithm of allocation.
e) What is a distributed system?
f) List 4 necessary conditions for deadlock.
g) What is a system call? discuss with example.
h) What is a kernel?
i) discuss the difference ranging from a program and a process.
j) explain concurrency.

Section-B (4x5=20)
Q2) State and explain the differences ranging from Multiprogramming and Multitasking.
Q3) elaborate distributed and non distributed operating systems?
Q4) What is a scheduler? How many kinds of schedulers coexist in a complex operation system? Explain'
Q5) discuss the difference ranging from internal fragmentation and external fragmentation.Which 1 occurs in paging system?
Q6) discuss Deadlock Prevention Vs Avoidance.

Section - C (2x10=20)
Q7) What is virtual memory? elaborate its different advantages?
Q8) What is file system? discuss file protection and allocation methods.
Q9) What is Process in Linux? discuss '&' and 'kill' in detail.

Earning:   Approval pending.