Purpose of exec functions
Specify the purpose of exec functions?
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Whenever a process calls one of the exec functions, that particular process is fully replaced through the new program. New program starts its execution from the main function. The processed does not alters across an exec since a new process is not created. However, this function substitutes the current process with the new program from the disk.
State the terms preemption and context switching.
How do I know that platform security abilities my S60 3rd Edition application needs?
Explain the way to communicate server with more than one client.
Overriding for chaining: It is a form of method overriding in which the sub-class version of a method verifies to see whether it can react to the message on its own and just calls the super-class version of the method.
Write about the Kernel?
Define the process group?
Unions: Unions in C and C++ are object overlays—aggregate quantities such as structs, except that each element of the union consists offset 0, and the total size of union is only as large as is required to hold its largest member (Kernighan and
First in, first out: It is FIFO semantics of the queue data structure. Items are eliminated in the order in which they arrived in the queue; therefore older items are always eliminated before newer ones.
Finalization: Instantly before an object is garbage collected, its finalize method is called. This offers it the opportunity to free any resources it may be holding on to.
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