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Explain about threading issues?
The fork and exec system calls
In a multithreaded program of few UNIX systems have chosen to have two versions of fork, one that duplicates each threads and another that duplicates only the thread that raised the fork system call. If a thread raised the exec system call, the program specified in the parameter to exec will change the entire process.
what is segmentation as it refers to operating system
explain about design issues of network operating system
Process States A total of nine states are acknowledged by the UNIX system. They are like as follow: User running Executing
Q. If each the access rights to an object are deleted the object can no longer be accessed. At this stage the object should also be deleted and the space it occupies should be ret
Hierarchical paging Single way is to use a two-level paging algorithm, in which the page table itself is also paged. A logical address is separated into a page number and a pag
Operating Systems have evolved tremendously in the last few decades. The first approach for building Operating Systems, taken during the 40s through early 60s, was to allow only on
Multi-level page tables are tree-like structures to hold page tables. As an example, consider a two- level page table, again on a 32-bit architecture with 212 = 4 kbyte pages. Now,
Q. Presume an operating system maps user-level threads to the kernel using the many-to-many model and the mapping is done through LWPs. Additionally the system allows developers to
Define request edge and assignment edge. Answer: A directed edge from process Pi to resource type R j is denoted by Pi->j; it signifies that process Pi requested an instance
Define Server Processing with Queues The efficient server processing of client request is essential for optimized client- server applications. This process is greatly enhanced
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