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Explain the Spawnlp Functions Used in the NetWare
Spawnlp(flags, execName, arg0,...)
The Spawnlp function is used to load a NetWare executable file (NLM) specified by execName into memory and start execution. Optional flags may be passed to Spawnlp function to control execution of the spawned NLM. P_NOWAIT clears that the executable is to be loaded and executed asynchronously to the calling program. Optional arguments (argo,...) may be passed (variable number) to the invoked program. The first argument is the name of the executable and the end of arguments should be specified with a NULL All arguments are concatenated with white space separating the parameters and can be obtained from standard argc and argv mechanisms or with the function call getcmd( ).
Q. Some untimely computers protected the operating system by placing it in a memory partition that couldn't be modified by either the user job or the operating system itself. Expl
Banker's Algorithm In this analogy Customers ≡ processes Units ≡ resources, say, tape drive Ba
i need the job to be done within 3 days
List operations to be performed on directories. Search for a file, delete a file, create a file, list a directory, rename a file, and traverse the file system.
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Explain FIFO page replacement A FIFO replacement algorithm associates with every page the time when that page was brought into memory. When a page must be changed, the oldest p
What are the functions of virtual file system (VFS)? a. It separates file-system-generic operations from their execution defining a clean VFS interface. It permits transparent
How is memory management done using bit maps? A bit map is here in this we signify the bit value as 0 or 1. 1-hole 0-process In this we are able to represent the proce
What is super block A partition control block have partitions details, such as the number of blocks in the partition, size of the blocks, free-blocks and free-block pointers an
What is the purpose of system programs? System programs can be thought of as bundles of useful system calls. They give basic functionality to users and so users do not require
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