MSCCS-10
June Examination 2016
MSCCS (Final) Examination
Operating System
Paper MSCCS-10
Time 3 Hours Max. Marks 100
Note: The question paper is divided into three sections B and C. Write answers as per given instructions.
Section A 10 × 2 20
(Very Short Answer Questions)
Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum upto 30 words. Each question carries 2 marks.
What is immutable Files?
What do you mean by Atomic Transactions?
What do you mean by shell?
What is Hash Function?
Give the definition of Integrity.
How to initialize array in AWK?
What is the use of AWK?
(viii) What is the use of pipes?
654
MSCCS-10 300 3 (P.T.O.)
MSCCS-10 300 3 (Contd.)
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What do you mean by Cipher Text?
What is Trojan Horse?
Section B 4 × 10 40
(Short Answer Questions)
Note: Answer any four questions. Each answer should not
exceed 200 words. Each question carries 10 marks.
What are public and private keys? How they are used in
encryption and decryption process?
What is Critical Section? Discuss the Critical-Section Problem.
Explain with example Lamport Non token based algorithm for
mutual exclusion.
Write short note on Sun's Network File System.
What is Cache Coherence Problem? Discuss the solution of
that problem with example.
What is Kerberos? Explain its architecture in brief.
Explain 'Walk-through Algorithm' in brief.
How we can login in the UNIX? Write the steps.
MSCCS-10 300 3
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Section C 2 × 20 40
(Long Answer Questions)
Note: Answer any two questions. You have to delimit your each
answer maximum upto 500 words. Each question carries
20 marks.
10) What is deadlock? Explain how the deadlock handling in a
Distributed System Environment is different from that in a
Conventional Environment.
11) Explain how the concept of Distributed System Memory
combines the merits of both Distributed and Shared Memory
System. Explain consistency models in detail.
12) Discuss the Architecture and design issues related to
Distributed File System.
13) What do you mean by Multiprocessor Operating System?
Discuss various classification of Multiprocessors.