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Explain Belady's Anomaly?
Also called FIFO anomaly. Usually, on enhancing the number of frames allocated to a process virtual memory, the process implementation is faster, because fewer page faults happens. Sometimes, the reverse happens, i.e., the execution time enhances even when more frames are allocated to the process. This is Belady's Anomaly. This is true for certain page reference patterns.
Define a state which is not a fundamental process state Answer: Blocked state is not a fundamental process state
Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes?
Define a linker program A linker program links the program along with other programs required for its execution.
Enhanced Second chance algorithm In this a modify bit is as well used. Now if the ordered pair of reference and modify is (0,0) neither recently used nor modified - the best
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. Here if a 10k process enters we are able to make a space of
operating systems and its types together with its design issues and their examples.
Q. How does DMA raise system concurrency? How does it make difficult hardware design? Answer: DMA increases system concurrency by allowing the CPU to perform tasks while the
Do you have writers that can use the software AIMMS version 3.9?
Deadlocks can be detected while the program is running, by running cycle detection algorithms on the graph that de?nes the current use of resources. De?ne this graph as follows:
write a linux command to display lines from 25 - 45 of directory "/edc/password" write a linux command to display directory in /edc
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