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Question 21 Not yet answered Context switching can become a burden with increasing the frequency of the short term scheduler. Which one of the following can increase the speed of context switching in a computer system? Marked out of 1.00 Flag question O a. Increase the bus width of the CPU O b. Increase the number of concurrent processes O c. Implement hardware support to copy registers in one instruction O d. Reduce the number of concurrent processes Question 22 Not yet Which one of the following statements is correct? answered Marked out of 1.00 a. When an interrupt occurs a process is stopped and moved from the ready state to the running state. Flag question O b. When an interrupt occurs a process is stopped and moved from the running state to the waiting state. O C. When an interrupt occurs a process is stopped and terminated O d. When an interrupt occurs a process is stopped and moved from the running state to the ready state Question 23 The long term scheduler must Not yet answered Marked out of 1.00 O a. Control the degree of multiprogramming. Flag question O b. Suspend jobs using too many resources. O c. None of these O d. Dispatch jobs. Question 24 Not yet answered Which one of the following is not a viitual machine system? Marked out of 1.00 O a. Emulator P Flag question O b. VMware O C. Linux O d. Java Question 25 Not yet answered Which one of the following is not a component of the OS? Marked out of 1.00 O a. Compilers Flag question Ob. User Interface O c. System programs O d. File System