ApY Multiple Choice -Choose the correct answer from the choices given. Cirele your answer on Part I (5 points) the paper. There is only one correct answer. 1) A cluster system is a loosely coupled system in which: a. Every CPU has its own memory and clock. The CPUs share memory and clock All of the above. c. d. None of the above 2) A synchronous IVO means that that: a- The CPU executes all the instructions at once. b. The CPU executes the next instruction after L/O even if /O is not complete c. All of the above. d. None of the above. 3) A software interrupt: a. is a trap caused by a user application request to the operating system. I. isan interrupt caused by a device request to the CPU c. All of the above. d. None of the above. 4) An interrupt vector in an Operating System: es the adresses of the service routines of the Operating a.) is a vector which st b. is a vector which stores the service routines of the Operating System. c. is a vector which stores the parameters of a system call from a user application to System. the Operating System. d. None of the above. Time-sharing systems deal with many programs while the multiprogramming systems do not. 5) o True o False