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Q. What are the tradeoffs concerned in rereading code pages from the file system versus using swap space to store them?
Answer: If codes pages are accumulate in swap space they can be transferred more quickly to main memory (because swap space allocation is tuned for faster performance than general file system allocation). Using swap space is able to require start-up time if the pages are copied there at process invocation rather than just being paged out to swap space on demand. As well more swap space must be allocated if it is used for both codes as well as data pages.
Q. List three instances of deadlocks that aren't related to a computer system environment. Answer: Two cars passage a single-lane bridge from opposite directions.
Define dynamic loading. To obtain better memory-space utilization dynamic loading is used. With dynamic loading, a routine is not loaded until it is called. All routines are ke
The term IPC (Inter-Process Communication) defines several paths by which different process executing on some operating system interact between each other.
Q. Explain the booting process for a Windows XP system? Answer: (1) Since the hardware powers on the BIOS begins executing From ROMand loads as well as executes the bootstrap
Relative file organization A relative file is an array of fixed-length slots and the records can be inserted in the first free slot found from the beginning of the file and
Problem: a) Define the term ‘process' and what are the different constituents of a process. b) In the three-state process model, what does each of the three states signify?
summary of what operating system do
What are files and explain the access methods for files? File definition Attributes, operations and types Direct access Sequential access with diagram Other access
Q. Polling for an I/O completion is able to waste a large number of CPU cycles if the processor iterates a busy-waiting loop several times before the I/O completes. However if the
Define spooling. A spool is a buffer that holds output for a device, like printer, that cannot accept interleaved data streams. When a request finishes printing, the spooling s
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