The primary reason for opening each website in a separate process is that if a w

Question

The primary reason for opening each website in a separate process is that if a web application in one website crashes, only that renderer process is affected, and the browser process, as well as other renderer processes, are unaffected. Because multiple threads all belong to the same process, any thread that crashes would affect the entire process True or false Concurrency means that more than one process or thread is progressing at the same time. However, it does not imply that the processes are running simultaneously. The scheduling of tasks allows for concurrency, but parallelism is supported only on systems with more than one processing core. True or false A system with two dual-core processors has four processors available for scheduling. A CPU-intensive application is running on this system. All input is performed at program start-up, when a single file must be opened. Similarly, all output is performed just before the program terminates, when the program results must be written to a single file. Between startup and termination, the program is entirely CPU bound. Your task is to improve the performance of this application by multithreading it. The application runs on a system that uses the one-to-one threading model (each user thread maps to a kernel thread). How many threads would you create? There should be as many threads as there are processing cores. Fewer would be a waste of processing resources, and any number more than four would be unable to run. True or False

Explanation / Answer

1)

True, An illegal operation performed by a thread crashes the entire process and so, one misbehaving thread can disrupt the processing of all the other threads in the application.

2)

TRUE Task parallelism divides the different tasks to be performed among the different cores and performs them simultaneously

Yes,parallelism supports only on mulicore.

3)

False

more than four will run...but increasing processes reduces the spedd and further makles hangon

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