MSCCS-10/MSCCS-204/MCA-204
December Examination 2017
MSCCS-Final/MCA-IInd Year Examination
Operating System
Paper MSCCS-10/MSCCS-204/MCA-204
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.
Define operating system.
How an array is declared in awk programming?
What are classical problems of IPC?
What do you mean by private key cryptography?
Write the issues of distributed OS.
What is the encryption and decryption?
What do you understand by external and internal security?
654
MSCCS-10/MSCCS-204/MCA-204 400 3 (P.T.O.)
MSCCS-10/MSCCS-204/MCA-204 400 3 (Contd.)
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(viii) Write the need of advanced operating system.
Define thread.
What do you understand by aliases in Linux?
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.
Describe the architecture of distributed shared memory.
Explain the relationship between shell and kernel in Linux.
Explain prevention methods of deadlock.
Discuss the various types of serializablity in database OS.
Explain naming and name resolution in distributed file system.
Explain the shadow paging in distributed OS.
Write the differences between private and public key
cryptography.
How a deadlock is detected. Explain.
MSCCS-10/MSCCS-204/MCA-204 400 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 regular expression in awk? Write a awk script to find
smallest number among 10 numbers.
11) Explain Ricart-Agrawala mutual exclusion algorithm.
12) Explain the issues of deadlock in distributed operating system.
13) Explain the coherence write protocols in distributed shared
memory.