Need Help with understanding Lunix and Unix!!

8) Please use the page table on page 197 (Fig. 3.9) of the OS book to determine the physical address for the virtual address 13K. (Chapter 3)

A. 1000

B. 1K

C. 2000

D. 2K

E. Your answer: _____________

9) Which of the following statements is NOT true? (Chapter 3)

A. Given a logical address 0x7E6B (in hexadecimal) with a page size of 256 bytes, the page number is 0x7E;

B. The three-level memory hierarchy refers to cache memory, main memory, and disk storage;

C. The sizes of segments are varied and the sizes of pages are the same;

D. Process Control Blocks are used to store the program code of a running process;

E. A page fault occurs when a page referenced by a running program is not found in the memory.

10) If the memory addresses of a computer are 64 bits, its memory address space is (Chapter 1)

A. 64² bytes

B. 64² bits

C. 64¹⁰ bytes

D. 2⁶⁴ bits

E. 2⁶⁴ bytes

F. 10⁶⁴ bytes

G. Your answer: ______________________________________