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Question: Think about a system that generates ten million audit records every day. Also suppose that there are on average 10 attacks per day on this system and that each such attack is reflected in twenty records. If the intrusion-detection system has a true-alarm rate of 0.6 and a false alarm rate of 0.0005, what percentage of alarms generated by the system correspond to real intrusions?
Qqueue for service (if the server process is busy servicing another request). Requests in queue are served according to the scheduling policy in use: First-In-First-Out (FIFO) scheduling.
Intermediate Level Tasks : Below is a simple program. It creates 2 threads. The first thread keeps printing out X on the screen, and the second thread keeps printing out O on the screen.
Slim reader-writer locks favor neither readers nor writers, nor are waiting threads ordered in FIFO queue. Describe benefits of providing such a synchronization tool.
Assume we have two threads A and B A and B are to repeatedly print out ping and pong. Write down pseudocode of thread A and B How can this be solved with and without semaphores.
Illustrate the results applying deadlock detection algorithm to following data. Give proper description for supporting your answer.
the wife calls deposit (). Describe how a race condition is possible and what might be done to prevent the race condition from occurring.
Implement the parser in a separate file. Implement the main parser function in a separate file main.c
Explain how the computer system accommodating the 2G memory requirement by only using 1G physical memory. Assume that the page size is 4M, and so is the page frame size and Explain what logic memory addresses are, what physical memory addresses are..
The software house has been contacted by a Governmental Nuclear Reactor Agency that wants to change the current Operating System of their plant.
Remembering that there's a trade-off between memory use. Then give an example where doing so will cause throughput to suffer.
Simulate the long-term scheduler, the short-term scheduler and the I/O scheduler of the computer using the First-Come-First-Serve algorithm.
Information systems have become so integrated into the UK society and economy that the cashless society is a realistic possibility within the next 25 years.
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