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Q. Error detection in operating system?
Error detection- Error detection take places at both the hardware and software levels. At the hardware level every data transfers must be inspected to ensure that data haven't been corrupted in transit.
All data on media should be checked to be sure they have not changed since they were written to the media. At the software level media should be checked for data consistency for instance whether the number of allocated and unallocated blocks of storage matches the total number on the device. There errors are habitually process-independent (for instance the corruption of data on a disk) therefore there must be a global program (the operating system) that handles all types of errors. As well by having errors processed through the operating system processes need not contain code to catch and correct all the errors possible on a system.
Show the search tree generated by Hill-Climbing search (text figure 4.2, page 122; or Local Search lecture, slide 6) for each of the two heuristics (a) and (b) applied to the follo
why we say" OS is a resource allocator" and “OS is a control program"?
Clustered file organization A clustered file is also called a B-tree-clustered file is a tree-structured file in which records with adjacent index values are clustered toget
Virtual addresses are made up of two parts: the ?rst part is the page number, and the second part is an offset inside that page. Suppose our pages are 4kb (4096 = 212 bytes) long,
Q. Consider the following page-replacement algorithms. Rank the algorithms on a five-point scale from "bad" to "perfect" according to their page-fault rate. Detach those algorithm
What is an effector process? The effector process is a method that verifies itself.The effector process exists in particular criteria.
Find the optimal solution and optimal value of the following linear program. Use both (a) the enumerating the corner points method and (b) the iso-profit line method. Also identify
Now let us present an implementation of a producer-consumer system using condition variables. This implementation works. dequeue() lock(A) while (queue empty) { wait(A, C)
Q. We have stressed the require for an operating system to make efficient use of the computing hardware. When is it suitable for the operating system to forsake this principle and
Q. Present an algorithm for reconstructing a logical ring after a process in the ring fails? Answer: Typically distributed systems utilize a coordinator process that performs
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