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Operating Systems
1. Explain Micro-kernel? Specify the benefits of Micro-kernel?
2. Describe seven state process models used for OS with necessary diagram. Differentiate between process and threads.
3. List the jobs of CPU scheduler? Explain any two scheduling algorithm.
4. Describe the algorithm of Peterson's method for mutual exclusion.
5. Elaborate how the block size is affected on I/O operation to read the file.
6. Explain programmed I/O and interrupt I/O. How do they differ?
Q. In some systems a subdirectory is able to be read and written by an authorized user just as ordinary files can be. a. Explain the protection problems that could arise. b.
Memory Protection
Q. What is the use of system programs? Answer: System programs are able to be thought of as bundles of useful system calls. They provide fundamental functionality to users so
advantages and disadvantages of monolithic and layered approach
Define which is not a key piece of information, stored in single page table entry, supposing pure paging and virtual memory A reference for the disk block which stores the pa
What are Tree-structured directories We can generalize the directory structure to a tree of arbitrary height. This permits the user to create their own sub directories and to c
Problem: a) Define the term ‘process' and what are the different constituents of a process. b) In the three-state process model, what does each of the three states signify?
Q. Explain the actions taken by a kernel to context switch between kernel level threads. Answer: Context switching among kernel threads classically requires saving the value
Regard as a computer system that runs 5000 jobs per month with no deadlock-prevention or deadlock-avoidance scheme. Deadlocks take place about twice per month and the operator must
Recognition of essential syntactic constructs by reductions, this task is carried out by Recognition of essential syntactic constructs by reductions, this task is carried out
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