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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( ).
Explain the Application Interaction Protocols Application interaction protocols are uniquely defined for each program and are used to logically describe the data being passed b
The idea of reference counting is to maintain, for every object, the total number of references to that object, i.e. the number of "incoming" pointers. Whenever the number of refer
Q. In a disk jukebox what would be the result of having more open files than the number of drives in the jukebox? Answer: Two bad results could result. One likelihood is star
UNIX systems utilized to use disk-layout optimizations based on the rotation position of disk data however modern implementations including Linux simply optimize for sequential dat
(a) Describe services of operating systems. (b) Differentiate among the short term, medium term and long term scheduling that are given by multi-tasking operating systems.
Process Synchronization in windows 2000
Problem: a) Explain physically what occurs when a disk is fragmented. What is the purpose of "defragmenting" a disk? b) What is the idea behind backing up data on a secondar
Forking is an important phase of Unix, critical to the support of its design strategies, which encourages the implementation of filters. In Unix, a filter is a process that reads i
Semispace works by maintaining two disjoint areas from which memory can be allocated. These areas are called the from-space and the to-space. At ?rst, the algorithm allocates memor
Process termination A process terminates when it finishes implementing its final statement and asks the operating system to delete it by using the exit system call. At that tim
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