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Q. What system calls have to be implementing by a command interpreter or shell in order to start a new process?
Answer: In the UNIX systems a fork system call followed by an exec system call need to be performed to start a new process. The fork call clones the presently executing process while the exec call overlays a new process based on a different executable over the calling process.
Explain the concept of Reentrancy? It is a useful, memory-saving method for multiprogrammed timesharing systems. A Reentrant Procedure is one in which many users can share a si
What is a file? A named collection of related data explained by the creator, recorded on secondary storage.
Q. What kinds of networking does Windows XP support? How does Windows XP execute transport protocols? Describe two networking protocols. Answer: Support is offer for bo
whats the problem in two state model ?
What is Two-level directory In the two-level directory structure every user has own user file directory (UFD). When a user jobs begins or a user logs in, the system's master fi
what is instant messaging used for
Explain Structure The Grammar for programming language is a formal description of Structure
What are the benefits of thread pools:- The benefits of thread pools are 1. It is usually faster to service a request with an existing thread than waiting to make a thread.
Briefly discuss on real-time scheduling? It is divided into two types. Hard real-time systems are needed to complete a critical task within a guaranteed amount of time. T
List the task regions in the Spiral model. Customer communication - In this region it is suggested to set up customer communication. Planning - All planning activities
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