Tamil Nadu Open University (TNOU) 2009-2nd Sem M.C.A - - Distributed operating system (New Regulations) -- X - Question Paper
M.C.A. DEGREE EXAMINATION, 2009
( 2nd SEMESTER )
( PAPER - X )
231. DISTRIBUTED OPERATING SYSTEM
( New Regulations )
December ] [ Time : three Hours
Maximum : 100 Marks
part - A (8 ×5 = 40)
ans any 8 ques..
All ques. carry equal marks.
1. What is distributed operating system ? discuss its features.
2. List and describe the desirable features of a good message passing system.
3. What is a deadlock ? elaborate the 4 necessary conditions for a deadlock to occur ?
4. What do you mean by thread ? elaborate the 3 commonly used ways to arrange the threads ?
5. define the various kinds of authentication needed in a distributed system.
6. Differentiate ranging from passive and active attacks. Which is more harmful and why ?
7. Write the features of UNIX file system.
8. discuss any 2 system calls for the UNIX file system.
9. Write a short note on sockets.
10. What do you mean by process tracing ? discuss.
part - B (3 ×20 = 60)
ans any 3 ques..
All ques. carry equal marks.
11. discuss the major problems in designing a distributed operating system.
12. What is process migration ? discuss the features of a good process migration mechanism.
13. What is key distribution issue ? explain
the 3 commonly used implementation approaches.
14. Write a short note on :
(a) Pipes in UNIX.
(b) Mounting and unmounting file system.
15. explain the inter process communication in UNIX system.
Register Number:
Name of the Candidate:
6918 M.C.A. DEGREE EXAMINATION, 2009
(SECOND SEMESTER)
( PAPER - X )
231. DISTRIBUTED OPERATING SYSTEM
( New Regulations )
December ] [ Time : 3 Hours
Maximum : 100 Marks
SECTION - A (8 x5 = 40)
Answer any EIGHT questions.
All questions carry equal marks.
1. What is distributed operating system ? Explain its features.
2. List and define the desirable features of a good message passing system.
3. What is a deadlock ? What are the four necessary conditions for a deadlock to occur ?
4. What do you mean by thread ? What are the three commonly used ways to organize the threads ?
5. Describe the different types of authentication needed in a distributed system.
6. Differentiate between passive and active attacks. Which is more harmful and why ?
7. Write the features of UNIX file system.
8. Explain any two system calls for the UNIX file system.
9. Write a short note on sockets.
10. What do you mean by process tracing ? Explain.
SECTION - B (3 x20 = 60)
Answer any THREE questions.
All questions carry equal marks.
11. Explain the major issues in designing a distributed operating system.
12. What is process migration ? Explain the features of a good process migration mechanism.
13. What is key distribution problem ? Discuss the three commonly used implementation approaches.
14. Write a short note on :
(a) Pipes in UNIX.
(b) Mounting and unmounting file system.
15. Discuss the interprocess communication in UNIX system.
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