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Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
How Virtual memory is implemented Virtual memory can be implemented along with Segmentation and Paging
What is the exclusive feature of UNIX Shell is the exclusive feature of UNIX.
Process Description A process in UNIX is a somewhat complex set of data structures that provides the operating system with all of the information necessary to dispatch and manag
Question 1: a) State the different file attributes and briefly explain the operations that can be performed on each files. b) What is a semaphore? Describe why it is impor
. Nested Macro calls are expanded using the
Describe paging technique used in UNIX systems. When a process begin in UNIX, not every its memory pages are read in from the disk at once. In its place, the kernel loads into
Question: (a) i. Consider Active Directory as a database, then for each type and new class of objects, what is created? ii. What is the purpose of the global catalog? ii
diffenciet between least recently used and not recently used
Explain the Fork Function Fork function causes a new process to be created. The calling progress is duplicated as an exact copy (called the child process) that differs only in
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