Operating System (OS) Which of the following command is used to switch between the window programs? None of these Alt+F4 Ctrl+Tab Alt+Tab None of these Alt+F4 Ctrl+Tab Alt+Tab ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Who is called a supervisor of computer activity ? Memory Control unit I / O Devices Operating system Memory Control unit I / O Devices Operating system ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) What problem is solved by Dijkstra's banker's algorithm? cache coherence deadlock avoidance mutual exclusion deadlock recovery None of these cache coherence deadlock avoidance mutual exclusion deadlock recovery None of these ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The CPU, after receiving an interrupt from an I/O device halts for a predetermined time None of these branches off to the interrupt service routine immediately branches off to the interrupt service routine after completion of the current instruction hands over control of address bus and data bus to the interrupting device halts for a predetermined time None of these branches off to the interrupt service routine immediately branches off to the interrupt service routine after completion of the current instruction hands over control of address bus and data bus to the interrupting device ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The strategy of allowing processes that are logically runnable to be temporarily suspended is called shortest job first preemptive scheduling non preemptive scheduling None of these first come first served shortest job first preemptive scheduling non preemptive scheduling None of these first come first served ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) What is the method of handling deadlocks? Use a protocol to ensure that the system will never enter a deadlock state All of these Pretend that deadlocks never occur in the system Allow the system to enter the deadlock state and then recover Use a protocol to ensure that the system will never enter a deadlock state All of these Pretend that deadlocks never occur in the system Allow the system to enter the deadlock state and then recover ANSWER DOWNLOAD EXAMIANS APP
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