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Suppose we want to program a Web server; we could easily do so without using concurrency, as follows: while(true) wait connection read from socket and parse url look up url cont
Optimal page replacement An optimal page replacement algorithm has the least page fault rate of all algorithms. The algorithm states that put back the page that will not be us
What do you mean by semaphore? Semaphore : A synchronization variable that acquires on positive integer values. Invented by the Dijkstra P (semaphore): an atomic proce
Explain the Advantages and Drawback of Multiple Processes Application architected to take advantage of multiple processes will certainly see performance gains. Functions and Fe
Explain the steps in deadlock recovery. a) Exterminate off all processes involved - drastic. b) Exterminate off one at a time till deadlock gone - select a victim.
What is logical address space and physical address space? The set of all logical addresses formed by a program is known as a logical address space; the set of all physical addr
Identifying parallelism A formal way to identify parallelism in an activity is to draw a task dependence graph in a directed graph in which each vertex represents a task to
Explain the difference between internal and external fragmentation. Internal Fragmentation is the area in a region or a page that is not used by the job occupying that region o
The 5Z Company is selling pens to the local market. It is planning to maximize sales and profit by analyzing few conditions using the break-even analysis formula. Below is the data
What are the deadlock p revention methodologies? a. Necessitate that processes request all resources before starting - if cannot be granted don't run. b. Process
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