PART I. True/False Questions (2 points 9) Write TrueT or Fase/Fon the answer sheet. 1. Different Linux distributions may use the same Linux kernel. _ . In Linux, a program can call open () to open a FIFO (named pipe). -3. In Linux, a program can maps a part of a file (not a whole ile) to its virtual memory space with mmap). 4. In a program with multiple threads, synchronization is needed to prevent race condition. 5. In C, a two-dimensional array is actually an array of pointers, each of which points to a one-dimensional array 6. The only difference between named semaphores and unnamed semaphores is that named semaphores hav 7. Regular express (eo] is to match letter o or letter e from the beginning of a line. 8. Statement int a, b; is to define two pointers a and b. names, but unnamed semaphores don't. 9. In Linux, a process can call write )0 to send data to another process through a pipe