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Five batch jobs, A through E arrive at the scheduler at approximately the same time. They have estimated running times of 40ms, 50ms, 90ms, 30ms and 80ms respectively. Their priorities are 2, 3, 1, 5 and 4, respectively, with 1 being the highest priority. Specify the order in which processes execute and determine the mean process turnaround time for each of the scheduling algorithms.
In different communications models, communication may take place using either "message passing" or "shared memory". Distinguish between "message passing" and "shared memory", illustrating your answer with a diagram Give three advantages of virt..
The purpose of this program is to change such that it makes use of the IPC facilities provided by UNIX.
Use the semaphore methods to control the concurrency of the solution
VLIW processor - assembler
Discuss challenges that handheld devices provide for computer forensics. Compare the forensic tools for UNIX environments (e.g, the Sleuth and TCT) with tools for Windows environments
Write two challenges an OS faces when passing parameters between user and kernel mode. Describe how an OS can overcome them
Analysis and implementation of algorithms for memory allocation in operating system, Explain First- t and best- t methods are used in memory allocation in operating systems.
Using the internet as a source, compile a list of three known vulnerabilities for SQL Server on Windows operating systems and three vulnerabilities for Oracle on Unix.
Select one of two possible short reports, Subject 1. Page Replacement Algorithms and Block Caching, Subject 2. Storing Blocks and Remembering Where You Stored Them
Given that main memory is consisted of three page frames for public use and that seven-page program (with pages a, b, c, d, e, f, g) requests pages in the following order: a, b, a, c, d, a, e, f, g, c, b, g.
Give three technical merits of UNIX b) Differentiate between "clustered systems" and "real-time systems". c) Describe the purpose of using "trust relationship"
Deadlock Avoidance and Scheduling
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