Solapur University 2009 B.E Computer Science and Engineering Operating System II TE (CSE -II) 2008 - Question Paper
fli|jjji|j> ! Seat I
iilillilllliilll! SLR-V - 214I .E. (Computer Science and Engg.) (Part - II) Examination, 2008 OPERATING SYSTEMS - II
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Day and Date : Friday, 16-5-2008 Total Marks : 100
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Time : 3.00 p.m. to 6.00 p.m.
8 Instructions : 1) Solve any three questions from each Section. .
2) Figures to the right indicate full marks.
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SECTION-1
re 1 a) Explain processing environment provided by Unix from user's perspective. 8
8 Draw and explain file system layout in Unix O.S. 8
2. vX'Write an algorithm for buffer allocation. 8
8 \J>KWnte advantages and disadvantages of buffer cache. 8
3 a) The algorithm iget and iput do not require processor execution level to be raised
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to block out interrupts. Explain what does this imply. 8
b) Describe an algorithm that takes an incoic uiuJe as input and updates the
corresponding disk inode. 8
4. '-Wite short notes on uny two . 18 1) File system maintenance.
v.2i Race conditions arising due to unlink system call.
3 i Nanted and unnamed pipes Algorithm for making new node.
SECTION - :i
5. a Draw and explain detailed state transition :iagrain. 8 b1 Write an algorithm for changing size of region. 8
6. a Draw and expiain logical view of pare:.: and child processes and iheir relationship to other kernel data structure-: immediately after completion of fork system call. 8
b What action are carried ou: by kernel dur_*.: booting of Unix O.S ? 8
7. Expiain different time-relaied system call: available m Unix. 8 r !f validity fault occurs for a page hew is.i: :ar.d:ed ? 8
8. ::te short note on any two : 18 : Terminal drivers 2 Streams
3 User ID 4 ~ tatext of a process.
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