STUPIDSID
Solve any four out of five sub questions
1(a)
What are the major functions carried out by an operating system?
5 M
1(b)
Describe the types of semaphores.
5 M
1(c)
Discuss the problem of consumer-producer.
5 M
1(d)
Explain various process scheduling queues.
5 M
1(e)
Differentiate between internal and external fragmentation.
5 M
2(a)
Briefly explain the different kernel architectures.
10 M
2(b)
State the necessary conditions for deadlock. How to prevent the deadlock?
10 M
3(a)
Calculate number of page faults and page hits for the page replacement policies FIFO, Optimal & LRU for given reference string 6,0,5,2,0,3,0,4,2,3,0,3,2,5,2,0,5,6,0,5(assuming three frame size).
10 M
3(b)
Discuss the various file alocation methods.
10 M
4(a)
What is mutual exclusion? Explain peterson's algorithm for mutual exclusion.
10 M
4(b)
Explain the file systems of windows and Linux operating system.
10 M
5(a)
Assume that the disk head is initially positioned over track 100. For the disk space request of 27,129,110,186,147,41,10,64 and 120. Show how disk scheduling is carried out for SSTF, C-SCAN, C-LLOK. Calculate the average seek length and show the tracing of the requests.
10 M
5(b)
Define the terms Critical section, Race condition, Process Control Block, Kernel and shell of oS, Context Switch.
10 M
6(a)
Comparison between FCFS & SJF scheduling algorithms.
6 M
6(b)
Paging and segmentation.
8 M
6(c)
Process state diagram
6 M
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