Topic:Operating system

I will give thumbs up for correct answer (Just give correct answer no need explain)

Question:

1 The main driving force for the development from contiguous memory partitioning to paging is to (4.09) A improve the utilization of the main memory B. improve throughput of the system C satisfy users' requirements D meet the needs of multi-programming OD 2 Among the following memory management techniques, ( ) can generate the internal fragments (4.05 ) A Fixed-size partitioning and paging B. Dynamic partitioning and segmentation C Fixed-size partitioning and segmentation D Dynamic partitioning and paging . B D 3 Among the following memory management techniques, _ can generate the external fragments. (4.0) A Fixed-size partitioning and paging B Dynamic partitioning and segmentation Fixed-size partitioning and segmentation C D. Dynamic partitioning and paging B OD 4 In a paging system, if without the translation lookaside buffer, how many main memory accesses are required? (4.03 ) A 1 B 2 C 3 D. 4 OD 5 The objective of virtual memory is ) (4.00) A To implement main memory protection B. To support reallocation C. To expand the main memory capacity D To expand the secondary memory capacity OD