A preemptive version of shortest job first is O a. first-come first served O b. none of these. O c. shortest remaining time first d. round-robin scheduling O e. three-level scheduling In CPU-bound processes O a. More time spent in computation than I/O n O b. Synchronization cannot be performed correctly O c. More time spent in 1/0 than computation O d. The wait times may be too big O e. A good process mix is achieved Which one of the following statements is correct? O a when an interrupt occurs a process is stopped and terminated When an interrupt occurs a process is stopped and moved from the running state to the waiting state When an interrupt occurs a process is stopped and moved from the running state to the ready state Od when an interrupt occurs a process is stopped and moved from the ready state to the running state. What is the effect of increasing the time quantum to an arbitrarily large number for RR scheduling? O a. FCFS scheduling O b. SJF scheduling O c. None of these answers. O d.SRTF scheduling Kernel means: n O a. The parts of the OS code concerned with security. O b. Architecture dependent parts of the OS code. O c. Program running at all times on the computer. O d. The entire software shipped as OS by the manufacture