1. In operating system, each process has its own a address space and global variables b. open files 2. A PCB hold information for a. Process open files b. Program counter 3. FCFS algorithm is a. Preemptive b. Non-Preemptive 4. Context switch is considered as an a. Gain of time b. allow parallel execution 5. In Unix. Which system call creates the new process? a. fork b. create 6. A process can move from a state running to: a. Ready. b. Waiting. 7. When a fork() is called in a main : a. The child is executed first b. The parent is executed first 8. When we turn on a PC the first process starts at a. The Hard Disk Bootstrap b. The ROM Bootstrap 9. The heart of the operating system is a. Device drivers b. Kernel 10. Threads advantages are a. Lighter then process b. Shared codes and data c. All of the mentioned d. None of the above c. Process number d. All of the above c. All of them d. None of them c. make the machine faster d. none of the above c. new d. None of the above c. Terminating d. a&b c. The child and the parent are executed concurrently e. None of the above c. The Windows d. None of the above c. The fork d. The threads c. Context switch is very slow d. a&b