OSG 202 chap 3 Test Questions with Correct Answers Latest Update

OSG 202 chap 3 Test Questions with Correct Answers Latest Update Consider a swapping system in which the memory consists of the following hole sizes: 10 K, 4 K, 20 K, 15 K, 9 K. Assume first fit algorithm is used. Which holes are taken for successive segment requests of 8 K, 12 K, 10 K? * A.None of the other choices B. 10 K, 20 K, 15 K C. 9 K, 15 K, 10 K D. 20 K, 15 K, 4 K - Answers B Which of the following information bits in the entry of page table is used to indicate Page Fault? * A.Present/absent bit B. Status bit C. Referenced bit D .Modified bit - Answers A To specify an address in this segmented memory, the _____ form is used * A virtual address, offset B process, offset C physical address, offset D segment-number, offset - Answers D Page replacement algorithms determine A Which pages should be brought into memory because a process is likely to reference them soon B Which page to remove to provide space for an incoming page C How many pages should be added to the main memory D When the system should update page table entries - Answers B The page table for each process maintains _________ . A) the physical memory location of the process B) the frame location for each page of the process C) the page location for each frame of the process D) the logical memory location of the process - Answers B The modified/dirty bit is used for the purpose of: * A. None of the other choices B. Implementing FIFO page replacement algorithm C. Dynamic allocation of memory used by one process to another D. Reduce the average time required to service page faults - Answers D There are ____ entries per page in the Page table: * A 4 B 3 C 1 D 2 - Answers C Consider a swapping system in which the memory consists of the following hole sizes: 10K, 4K, 20K, 15K, 9K. Assume best fit algorithm is used. Which holes are taken for successive segment requests of 8K, 12K, 10K? * A 9K, 15K, 10K B 10K, 20K, 15K C 10K, 15K, 20K D 20K, 15K, 10K - Answers A When a virtual memory system manages memory in fixed-length units, which of the following terms correctly represents its unit? * A Segment B Block C Page D Frame - Answers C Which of these statements about the algorithm "First fit" is true? * A. Memory Manager starting searching the list of segments from the place where it left off last time. B. Memory Manager searches the entire list of segments from beginning to end and takes the smallest hole that is adequate. C. None of the choices D. Memory Manager scans along with the list of segments until it finds a hole that is big enough. - Answers D What is not the technique of implementation for Virtual Memory? * A paging B segmentation C all of the other choices D partition - Answers D Which solutions are used to solve the shared libraries? * 0/1 A Static reallocation and position-independent code B Relocation on the fly and position-independent code C position-independent code D None of the others - Answers C Which of the following information bits in the entry of page table is used to indicate what