Question

check and correct the answers please

9. In the above question, what will happen if the CPU executes an instruction that needs to access the location 12289(= 12K 1)? A. A page fault is generated. В. The MMU will put the address 12289 on the address bus. The MMU will generate the physical address 20488 The MMU will translate the address to I. C. D. E The MMU will translate the address to 12288 (12K8). 10. The following figure shows a clock algorithm where the hand is rotating clockwise with four frames; in each box, the letter represents a page and the number is its reference bit A 1 D 0 B 1 If the system has to load page E, which page will be replaced? А. О А В. C C D.D E A or B, depending on how the hand is positioned after a new page has been loaded 11. Which of the following is true? A. O Operating systems manage only hardware A thread can be in only one semaphore's waiting queue at a time. C. O A process must have a parent process At any given time, only one process can be executing instructions on a computer E. ONonpreemptible resources must be hardware. В. D.

Answer 1

10. E

11. C. True as for a single core processor, when the system is booting up, only one process is executing instructions.