Join Our Forum To download Latest Question papers and Syllabus

Get Money

Earn upto Rs. 9,000 pm checking Emails. Join now!

My New Page for you yoursyllabus.net

Enter your email address:

Delivered by FeedBurner


Wednesday, October 17, 2007

Operating System

Operating system

Time : three hours MM – 80
Note :- Attempt five questions in all, selecting exactly one from each of the secations A, B, C and D. section E is compulsory.

Section A
1. Explain :
(a) Simple Batch system
(b) Multi-Programmed batch system
(c) Time sharing system. 12
2. Explain the difference and relationship between a program and a process. Is this difference important in serial (single process) operating system ? Why or why not ? 12

Section B
3. Distinguish between interrupt driven i/o and DMA.
4. Following is the information related to process workload :
Processes Burst-time (in ms)
P1 21
P2 13
P3 10
P4 8
P5 6
Compute the waiting time for (a) FCFS (b) SJF (c ) Round robin (quantum=10).

Section C
5. What are Semaphores ? explain the critical section problem. 12
6. Define deadlock . what are the necessary conditions of a deadlock ? discuss in detail.12

Section –D
7. Discuss various directory structure along with their relative advantages and disadvantages .
8. Distinguish between :-
(a) Authorization and authentication
(b) Protection and security
(c) File and directory.
9. (a) What is the principal disadvantage of too much multi-programming ?
(b) what are two main operating system functions ?
(c) what is the main difference between multi-programming and time-sharing ?
(d) what are device drivers ?
(e) what is the difference between pre-emptive and non-pre emptive scheduling ?
(f) name the conditions for the occurrence of a deadlock.
(g) what is a safe state ?
(h) what are semaphores?
(i) what is virtual memory ?
(j) what is the difference between authorization and authentication ?
(k) what is a thread ?
(l) why directory structure is acyclic graph type ?
(m) what is process control block (PCB) ?
(n) what are processes and resources ?
(o) what are Coordinating processes ?
(p) what is cryptology ? 16*2=32

1 comment:

Vivek R said...

Hi .. Thanx for sharing .... sounds good ... very useful ..I have taken JRF/NET in computer science and application this time ...please share with me if you any materails/expected questions/ ebooks / old question papers related to paper1 and computer science and application ... which you think useful for exam ..please mail me to vivek.mtech@gmail.com

 
Thanks

Total Pageviews