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Problem
1. In at what instant is the point-of-no-return reached? That is, when is the atomic commit actually performed?
2. Give the full algorithm for whether an attempt to lock a file should succeed or fail. Consider both read and write locks, and the possibility that the file was unlocked, read locked, or write locked.
3. Systems that use locking for concurrency control usually distinguish read locks from write locks. What should happen if a process has already acquired a read lock and now wants to change it into a write lock? What about changing a write lock into a read lock?
A traffic light controller at an intersection has sensors to detect the presence of cars and turns the lights red, yellow, and green appropriately.
What is the name of the feature in Visual Studio that displays in a scrollable list all available methods and properties when dot is typed after an object name?
A typical hardware architecture provides an instruction called return from interrupt, abbreviated by something like iret. This instruction switches the mode.
Write a program that lets users design bar charts with a mouse. When the user clicks inside a bar, the next mouse click extends the length of the bar.
Write a report on the statistical relationship that you find between the stock price of the company that you have been assigned.
suppose an internet service provider isp has a voice over ip voip telephone system that is manages and sells. suppose
In some Asian countries, the number 14 is considered unlucky. How would you modify the sample program to handle such a building?
suppose that we are looking in a programming language that allows underscore (_) in variable names. When a scanner sees a character string such as AB_CD, is it more likely to identify this string as the single five-character token AB_CD or as thre..
Overload the drawCircle method of Exercise such that if the Color parameter is not provided, the circle's color will default to black.
Write down a function definition called addarray that takes two parameters- one an array as an int and the other an int that contains the number of elements of the array. The function would return the sum of the number of elements of the array as ..
In January 2012, Verizon stated that the 4G LTE is available in the 190 cities covering around 200 million American subscribers. In accordance with the AT&T’s Website.
Explain why they are important in a system development process. State the advantages and disadvantages of the Waterfall approach.
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