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Define dynamic linking.
Dynamic linking is same to dynamic loading, rather that loading being postponed unless execution time, linking is postponed. This feature is usually used with system libraries, like language subroutine libraries. A stub is contained in the image for each library-routine reference. The stub is a small piece of code that shows how to locate the appropriate memory-resident library routine, or how to load the library if the routine is not already present.
Q. What is the effect of permitting two entries in a page table to point to the same page frame in memory? Describe how this effect could be used to decrease the amount of time ne
Internal file structure All disk I/O is performed in units of single block, and all blocks are the similar size. It is unlikely that the physical record size will exactly match
draw a state diagram showing the transissions of a process from creation to termination
Q. What is the major advantage of the layered approach to system design? What are the de-merits of using the layered approach? Answer: As in all cases of modular design as well
A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o
What are the four necessary conditions of deadlock prevention? Ans: Four essential conditions for deadlock prevention: a. The meaning of removing the mutual exclusio
Virtual File System serves two important functions. 1. It divides file-system-generic operations from their execution by defining a clean VFS interface. 2. The VFS is based
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
Q. Does Windows XP offer any user-mode processes that enable it to run programs developed for other operating systems? Describe two of these subsystems. Answer: Environmental
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
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