This is a Question Papers of Mumbai University for B.Sc.IT Student of Semester - III [Modern Operating System] (Revised Course). [Year - April / 2015] . . . Solution Set of this Paper is Coming soon . . .

1. M o d e r n O p e r a t i n g S y s t e m
Q u e s t i o n P a p e r ( A p r i l – 2 0 1 5 ) [ R e v i s e d C o u r s e ]
1 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Time: 3 Hours Total Marks: 100
N.B.: (1) All Questions are Compulsory.
(2) Question 1 – solve any two questions.
(3) Draw diagrams whenever necessary.
(4) Marks are mentioned to the right of each question.
Q.1 Attempt Any Two from the following Question: (10 Marks)
(A) Explain in brief NFS. (5)
(B) Write a short note on PCB. (5)
(C) Explain Tree Structured Directory. (5)
(D) Write in brief about Swapping. (5)
Q.2 Attempt Any Three From The Following: (15 Marks)
(A) Explain Handheld System. (5)
(B) Write the difference between Single Batch System and Multiprogrammed Batch
System.
(5)
(C) Write short note on: (i) Assembler (ii) Complier (5)
(D) Explain Real Time System. (5)
Q.3 Attempt Any Three From The Following: (15 Marks)
(A) Give different types of services provider by OS. (5)
(B) Explain System boot. (5)
(C) Define and explain Virtual Machines. (5)
(D) Give different types of System Calls. (5)
Q.4 Attempt Any Three From The Following: (15 Marks)
(A) Explain about Multithreading Models. (5)
(B) How is the Communication done between Client and Server? (5)
(C) What is Critical Section Problem? (5)
(D) Define and explain semaphores? (5)
Q.5 Attempt Any Three From The Following: (15 Marks)
(A) Explain Paging. (5)
(B) Write about Dynamic Partitioning. (5)
(C) Explain Optimal Algorithm with example. (5)
(D) Write short note on Segmentation. (5)

2. M o d e r n O p e r a t i n g S y s t e m
Q u e s t i o n P a p e r ( A p r i l – 2 0 1 5 ) [ R e v i s e d C o u r s e ]
2 | Page
M u m b a i B . S c . I T S t u d y
F a c e b o o k | T w i t t e r | I n s t a g r a m | G o o g l e + | Y o u T u b e
– Kamal T.
Q.6 Attempt Any Three From The Following: (15 Marks)
(A) Explain Acyclic Graph Directory. (5)
(B) Write in brief about RAID. (5)
(C) What is Swap-Space Management? (5)
(D) Give the four conditions required for Deadlock. (5)
Q.7 Attempt Any Three From The Following: (15 Marks)
(A) Explain STREAMS. (5)
(B) Give different types of security and Network Threats. (5)
(C) Explain Access Matrix. (5)
(D) What are different principles of protection? (5)