1. Which of the following statement regarding Linux operating systems is incorrect? (A) A new process can be cloned with identical resources by using clone() system call (B) fork() is a system call in Linux to create a new thread (C) The use of namespaces allows the implementation of control groups (D) The UTS namespace allows administrators to initialize and configure parameters for different processes on the same system. (E) None of the above

-- 2. When a user process is running and an instruction is executed that requests a file-open operation, which of the following event will occur? (A) Supervisor call (B) Trap (C) I/O interrupt (D) Fault (E) None of the above

--- 3. Which of the following statement regarding interrupt is incorrect? (A) If no interrupts are pending, the processor proceeds to the next fetch stage. (B) Interrupt usually involves some overhead. (C) In handling multiple interrupts, the processor cannot disable other interrupts while an interrupt is being processed. (D) When the processor transfers control to the interrupt service routine, it needs to save the Program Status Word and the location of next instruction to be executed. (E) None of the above.