COP 4600 Exam 1 Latest Update 2024 Correct 100%

In a multiprogramming system the main memory is not generally occupied simultaneously by multiple processes. - ANSWER False A hardware mechanism is needed for translating virtual addresses to physical main memory addresses at the time of execution of the instruction that contains the reference. - ANSWER True A physical address is the location of a word relative to the beginning of the program and the processor translates that into a virtual address. - ANSWER False All segments of all processes must be of the same length. - ANSWER False It is impossible to have both paging and segmentation in the same system. - ANSWER False What is the difference between a virtual address and a physical address? - ANSWER VA is an address in a logical space (an address in an illusion) while the physical address is an address in the actual physical memory. Which of the following instructions should be privileged? i. Read the clock ii. Set value of timer iii. Turn off interrupts iv. Switch from user to kernel mode v. Clear memory - ANSWER ii. Set value of timer