NOVEMBER 2019 MADRAS UNIVERSITY SAE5A OPERATING SYSTEM


  
NOVEMBER 2019                                                                                                       SAE5A
PART-A
1.      What is a micro kernel operating system
2.      What is a process
3.      Define Deadlock.
4.      What are semaphores?
5.      What you mean by dynamic loading?
6.      Specify the main significance of memory management unit.
7.       Define swapping.
8.      What is a pure demand paging?.
9.      What is a file?
10.  What are the different accessing methods of a file?.
11.  What are database security threats?.
12.  Mention any two authentication factors.
PART-B
13.  Discuss about
a)      Hard real systems b) Soft real time.
14.   Explain in detail about First_come.First_served  scheduling with examples.
15.  Write a short note on resuming processes within a monitor.
16.  Explain how to avoid deadlocks.
17.  Discuss about
a)      Swapping  b) Fragmentation
18.  Write the file structure that the operating system can understand.
19.  What is program threats?. List some of the well known program threats.
PART-C
20.  Discuss briefly the process scheduling queues with a neat diagram.
21.  Explain briefly the classical problem of synchronization.
22.  a) Discuss in detail about paging and its address translation.
b)      Write the advantages and disadvantages of paging.
23.  Explain
a)      Page Buffering Algorithm
b)      Least Frequently used algorithm
c)      Most frequently used algorithm
24.  Explain briefly the concept of kernel I/O subsystem.



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