QUESTION 7 Operating systems are used to optimally (e.g. efficiently and fairly,...) decide between conflicting requests by users and applications for the different computing resources True False QUESTION 8 A CPU scheduler is responsible for selecting a process that is ready to run from the ones loaded in memory True False QUESTION 9 The use of a virtual machine (VM) abstracts the hardware details without affecting the speed of programs that are running on the VM True O False QUESTION 10 The values of the CPU registers are not a necessary part of the PCB True False QUESTION 11 Multiprogramming is An executable program that is composed of modules built using different programming languages Having multiple processors execute different programs at the same time Keeping several programs in memory at once and allocating the CPU between them All of the above None of the above QUESTION 12 In Timesharing based operating systems, the schedular gets invoked when A process terminates O A process requests an 170 operation A process finishes its time slot All of the above None of the above