I just want the final solution as soon as possible. Thanks

on 11 Which one of the following is not a component of the OS? t red out of O a. compilers question O b. User Interface O c. System programs O d. File System on 12 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? red ed out of question a. Increase the bus width of the CPU Ob. Increase the number of concurrent processes Implement hardware support to copy registers in one instruction O d. Reduce the number of concurrent processes tion 13 et ered Which one of the following statements about system security is correct? ced out of O a. A computer system these days does not need an OS. ag question O b. A computer running a multiuser OS is more secure than one running a single user OS. O c. A computer system these days is more secure than when it was run by an operator. O d. A computer that is connected to the internet is less secure than one which is not connected. tion 14 To an operating system a process is: et ered ed out of O a. State of execution of a task O b. A function or subroutine program used to provide an operating system services. eg question O c. Thread of execution with attached resources. estion 15 The long term scheduler must Et yet swered arked out of 0 Flag question a. None of these O b. Suspend jobs using too many resources. O c. Dispatch jobs. O d.Control the degree of multiprogramming