Operating System (OS) How can you optimize performance of your computer? Defrag disk Scan for virus Delete unused files All of above Defrag disk Scan for virus Delete unused files All of above ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Part of a program where the shared memory is accessed and which should be executed invisibly is called None of these semaphores directory mutual exclusion critical section None of these semaphores directory mutual exclusion critical section ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) User-Friendly Systems are: common among traditional mainframe operating systems becoming more common easy to develop required for object-oriented programming None of these common among traditional mainframe operating systems becoming more common easy to develop required for object-oriented programming None of these ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which of the following command is used to switch between the window programs? Alt+F4 Ctrl+Tab None of these Alt+Tab Alt+F4 Ctrl+Tab None of these Alt+Tab ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Which one of the following is not a layer of operating system? Kernel Critical selection Application program Shell Kernel Critical selection Application program Shell ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) What is the initial value of the semaphore to allow only one of the many processes to enter their critical section? 1 16 8 None of these 1 16 8 None of these ANSWER DOWNLOAD EXAMIANS APP
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