1. Multiple choices (Please circle or check only one for each question. 2 points cach, total 20 points) O O 1. Which of the following statements is not TRUE? (Chapter 1) A. For a 64-bit computer, its memory address space is 2"not 64%; B. A process is a program in execution; c. A child process has a different UID (User Identification) as its parent; D. DMA (Direct Memory Access) controls the flow of data between memory and some controller without constant CPU intervention. 2. The program counter is controlled and updated by (Chapter 1) A. superusers B. operating systems C. users' programs D. web browsers 3. Which of the following statements is NOT true? (Chapter 2) A Processes can share their address space B. Processes support the ability to have concurrent operation even when there is only one CPU available c. Processes can be created and terminated dynamically O D Processes can communicate with one another using interprocess communication primitives 4. The CPU scheduling algorithms are used to (Chapter 2) A. identify which process/thread is currently using the CPU B. check how much time has been used by the current process/thread C. determine which process/thread to run on the CPU next D. decide whether or not the current process/thread should be Y Y 5. Consider a physical address with a page frame size of 8KB. How many bits must be used to represent the page- frame offset of the physical address? (Chapter 3) Oas B. 10 C. 12 D. 14 E. 13