b) File allocation D. swapping can not take place. a) Simple division This section focuses on "Virtual Memory" in Operating System. Dec 28,2020 - Test: Virtual Memory | 10 Questions MCQ Test has questions of Computer Science Engineering (CSE) preparation. b)page-fault rate C - Stacks and Queues. The virtual memory is Use of icons and windows are characteristics of .. interface Which is built directly on the hardware? B. the memory size C. the CPU utilization D. the number of partitions E. both a and b F. None of these Answer D. SET 3: Memory Management Mcqs. b)least recently used algorithm, 9. b) newest page is chosen Programs access virtual memory naively; the abstraction (virtual memory) distinguishes between virtual memory locations that map directly to physical locations, and those that map to secondary memory locations. Answer Answer View Answer Virtual Memory can be implemented via? Answer Explanation: First In First Out (FIFO) algorithm : Oldest page in main memory is the one which will be selected for replacement. c) internal fragmentation, 19. b) external fragmentation b)Cache Virtual memory also permits a program’s memory to be physically noncontiguous , so that every portion can be allocated wherever space is available. CPU fetches the instruction from memory according to the value of _____ a) program counter b) status register c) instruction register d) program status word View Answer Memory Management multiple choice questions and answers on Memory Management MCQ questions quiz on Memory Management objectives questions. In virtual memory systems, Dynamic address translation A) is the hardware necessary to implement paging B) stores pages at a specific location on disk C) is useless when swapping is used A. The program is divided into operable parts called as _____. Answer c) Demand Paging A. In this scheme, the operating system retrieves data from secondary storage in same-size blocks called pages. Memory tables are used to … c) page fault occurs 6. consider the following sequence of addresses : 123,215,600,1234,76,96. B) Dynamic partitioning 13. GATE CSE MCQs. This test is Rated positive by 87% students preparing for Computer Science Engineering (CSE).This MCQ test is related to Computer Science Engineering (CSE) syllabus, prepared by Computer Science Engineering (CSE) teachers. This facilitates process relocation. These computer memory questions and answers are very important for bank exams and other competitive exams.- Page 31 a) Less Recently used b) random access Any program, no matter how small, occupies an entire partition. a) cpu While executing a program, if the program references a page which is not available in the main memory then it is known as? B. Frame Fault A. operating system questions answers mcq listing is useful for it officer bank exam and other information technology related online exam and interview preparation - question 12 b) page fault rate, 7.In FIFO page replacement algorithm, when a page must be replaced what is chosen D. Secondary Memory, Explanation: A computer can address more memory than the amount physically installed on the system. Virtual memory, apart from overcoming the main memory size limitation, allows sharing of main memory among processes. 11. what memory is called separation of user logical memory and physical memory a) Memory sharing b)Virtual memory c)Memory management d) Memory control Answer b)Virtual memory. AnswerA, 10. Answer c) Least Randomly used Consider a virtual memory system that uses First In First Out (FIFO) page replacement policy and it allocates a fixed number of frames to a process. When a program tries to access a page that is mapped in address space but not loaded in physical memory, then what occurs In this section of Operating System Main Memory - Memory Management.it contain Operating System Main Memory - Memory Management MCQs (Multiple Choice Questions Answers).All the MCQs (Multiple Choice Question Answers) requires in detail reading of Operating System subject as the hardness level of MCQs have been kept to advance level. Explanation: Swap space exists in secondary memory. Demand Paging Which process is busy swapping pages in and out. d)Virtual memory d)Least Recently used Virtual Fragmentation C. External Fragmentation D. None of them. c) Slab c) segmentation fault occurs Answer 9. Memory Management multiple choice questions and answers on Memory Management MCQ questions quiz on Memory Management objectives questions. c) Cut overwrite d) first in first out algorithm Page 2 c) individual page of a process a) Convert overwrite C. main memory unit b) least recently used algorithm Virtual memory in Windows can be mapped to more than one process, and when that is done, the virtual memory is shared between or among the processes. Physical Memory We have also provided the explanation to all the Operating Systems Virtual Memory Questions. More efficient use of memory. This section focuses on "Virtual Memory" in Operating System. Networking MCQ Software Engineering MCQ Systems Programming MCQ UNIX System MCQ Neural Networks MCQ Fuzzy Systems MCQ. Which memory allocation policy allocate the largest hole to the process? a) True b) False Answer : A 32. Answer A. When virtual memory is mapped to a disk file that is not the page file(s), the memory is not backed by a page file. a) Allocator 9. 4. in which Swap space exists Page Buffering algorithm A) Fixed partitioning 20. c) Priority allocation D) Simple segmentation 19. 21.technique is implemented by magnetic disk for secondary memory is called, a)Main memory Explanation: A process is thrashing if it is spending more time paging than executing. a) Paging b) Demand paging c) Segmentation d) Swapping View Answer. c) modularity A computer can address more memory than the amount physically installed on the system. Explanation: Most frequently Used(MFU) algorithm :This algorithm is based on the argument that the page with the smallest count was probably just brought in and has yet to be used. Virtual memory is – (1) an extremely large main memory (2) an extremely large secondary memory (3) an illusion of an extremely large memory (4) a type of memory used in super computers (5) None of these Ans- B 22. d) entire process Internal Fragmentation B. b) False Number of tables and amount of processor overhead for handling page interrupts are greater than in the case of the simple paged management techniques. Operating System MCQ - Virtual Memory. Which algorithm is based on the argument that the page with the smallest count? b)Virtual memory 2: Some programs do not exhibit Locality of reference. d)Page fault C. 1,2,6,12,0,0 d)Virtual memory, 22. There is no limit on degree of multiprogramming. Disadvantages. The disk file can be the system paging file if the data to be shared among processes does not need to be saved permanently on disk. d) none of the mentioned Solution: The Memory Address Register contains the address of the memory location that is to be read from or stored into. c) Thrashing, 20. select the most nearest answer for one or more physically contiguous pages. c) instructions c) Slab c) internal fragmentation d) Demand paging A. Answer Dec 27,2020 - Memory Management And Virtual Memory Practice Quiz - 1 | 30 Questions MCQ Test has questions of Computer Science Engineering (CSE) preparation. b) Local replacement The techniques which move the program blocks to or from the physical memory is called as _____. OS is hold a very good value in technical aptitudes. a) memory access time b) first page of a process Computer Architecture MCQ DBMS MCQ Networking MCQ. C - Matrices. Page 3 d) locality A. oldest page B) virtual memory 10. Multiple choice questions on instruction level parallelism quiz answers PDF covers MCQ questions on … d)prior fragmentation 1. B) Dynamic partitioning 17. b) Object a) Swapping Answer: … Important MCQ on Related Subject _____ are specially designed computer chips reside inside other devices, such as your car or your electronic thermostat. 1. a) Simple allocation If page size is 100, then the reference string is? b)Page hit MCQ of Computer Organization. D. Page References. D. None of the above. COW stands for? d) locality, 11. what memory is called separation of user logical memory and physical memory c) secondary memory Primary Memory Page-7 section-1 16. d) no error occurs b) primary memory B) Simple Paging 14. D. Least Recently Used. Answer 3. a) oldest page is chosen, 8. whenever the page required to be replaced which algorithm chooses the page that has not been used for the longest period of time? c) individual page of a process The command to display the contents of a file fast.it Which of the following is an example of utility? a) page fault occurs This chapter cater to you MCQ and aptitude questions and answers on Operating System. Explanation: While executing a program, if the program references a page which is not available in the main memory because it was swapped out a little ago, the processor treats this invalid memory reference as a page fault. B. it is spending less time paging than executing Answer a) Global replacement, 18. 21. 12.Is logical Address space can be larger than physical address space? Answer D. All of the above. D. CPU. c) median page is chosen Hello Friends,this particular section is well focused on the Frequently asked Operating System Basics Multiple Choice Questions Answers in various competitive exams.This set of questions are very basic and easily understandable by students.we have kept the questions hardness level to very basic. Solution: In computer operating systems, paging is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory. b)External Fragmentation _____ is the concept in which a process is copied into the main memory from the secondary memory according to the requirement. c) Segmentation a) threads C) i, iii and iv only 11. c) counting based page replacement algorithm a) it spends more time paging than executing 7-7. c) Demand Paging, 14. This test is Rated positive by 91% students preparing for Computer Science Engineering (CSE).This MCQ test is related to Computer Science Engineering (CSE) syllabus, prepared by Computer Science Engineering (CSE) teachers. C. page fault occurs Answer Least frequently Used The memory can be shared among ,because of virtual memory You have to select the right answer to a question. a) Frames b) Segments c) Pages d) Sheets Answer : B 33. Answer C Programs. This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Memory Management”. 31. c) secondary memory, 5. B. These computer memory questions and answers are very important for bank exams and other competitive exams. d) none of the mentioned d) none of the mentioned C) i, ii, iv and v only 15. a) fragmentation Here I am sharing various types of mcq on computer memory because many students are confused to solve multiple choice questions on computer in the examination. Virtual Memory Reference String 7-9. a) Memory sharing Number 2 is certaintly not true. A way to … d)Block replacement known as 6. b) fatal error occurs a) additional reference bit algorithm Operating Systems Virtual Memory MCQ Quiz Answers with Solutions If the postulates are not sure about the answer, then click on the View Answer button to know it. 13. These Multiple Choice Questions (MCQ) should be practiced to improve the Operating System skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. d) Compaction a)globalization A process is thrashing if ____________, A. it is spending more time paging than executing A) Fixed partitioning 16. 4. 10. a) oldest page is chosen 7-8. Explanation: The string of memory references is called reference string. Answer Which of the following are the advantage of Demand Paging? d)Preference allocation Virtual Memory can be implemented via? b)Virtual memory, 12.Is logical Address space can be larger than physical address space? 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B. Large virtual memory. Reference strings are generated artificially or by tracing a given system and recording the address of each memory reference. By checking the below-provided Operating Systems Virtual Memory Questions, the applicants can know about the topic. a) True, 13. C - Linked Lists. The physical memory is not as large as the address space spanned by the processor. LRU stands for? C. Most frequently Used c)Memory management a) Division d) Cache Which a process selects a replacement frame from the set of all frames. Virtual memory typically located on . d)swapping can not take place Answer Answer d) Copy overwrite, 15. The pager concerns with the A. d) Memory control More efficient use of memory. 12,21,60,123,7,9 a) entire thread Unconstrained multiprogramming. This extra memory is actually called virtual memory, A. memory mapping unit C. There is no limit on degree of multiprogramming. Database functions and procedure MCQs Answers, C++ STANDARD LIBRARY MCQs Questions Answers, Storage area network MCQs Questions Answers, FPSC Computer Instructor Syllabus preparation. Or, it could map to absolutely nowhere, and you have a segfault on your hands. c) Priority allocation, 17. D. processor fault. c) Module replacement b) processes B. B. C. Logical Memory When there is enough memory to fit a process in memory, but the space is not contiguous we need A. C. Memory References Here I am sharing various types of mcq on computer memory because many students are confused to solve multiple choice questions on computer in the examination. 2. 1,2,6,12 A. a) Global replacement Virtual memory is the memory management capability of an Operating System that uses hardware and software to allow a computer to compensate for physical memory shortages by temporarily transferring data from the random access memory (RAM) to disk storage. Answer a) True b) False Answer a) True. D. 0,2,6,12,0,0, Explanation: If page size is 100, then the reference string is 1,2,6,12,0,0. a) True Consider the following two statements, 1: Sometimes the page fault rate is increased if the number of page frames allocated is increased. B. memory management unit A. Best-Fit B. Worst-Fit C. First-Fit D. None of them. 7. Answer Page Replacement C. random page What allocation uses a proportional allocation scheme using priorities rather than size. These Multiple Choice Questions (MCQ) should be practiced to improve the Operating System skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations. b) Least Recurrently used, 16. Due to lack of an explicit constraint on a job’s address space size. a)Hit miss c)Page miss In FIFO, ______ in main memory is the one which will be selected for replacement. A) Fixed partitioning 12. a) page fault occurs Home / All Categories / Operating System / Virtual Memory / 1. advertisement. Explanation: MMU stands for memory management unit. d) Complex division c)Buffer 11. Q 53. Working set model for page replacement is based on the assumption of Virtual Memory is a) An extremely large main memory b) An extremely large secondary Memory c) An illusion of an extremely large memory d) A type of memory used in super computer This Cloud Computing Test contains around 20 questions of multiple choice with 4 options. c) hit ratio C. page fault d)Page fault, 2.a process is copied into the main memory from the secondary memory a) it spends more time paging than executing b) Copy overwrite B. newest page Answer: a Explanation: None. Large virtual memory. b) Paging d) none of the mentioned The strategies like the first fit, best fit and worst fit are used to select a _____. d) demand paging, 3. process is trash b) Least Recurrently used Because of virtual memory, the memory can be shared among _____ a) processes b) threads c) instructions d) none of the mentioned View Answer. Answer Effective access time is directly proportional to c) Thrashing This extra memory is actually called ______________. Multiple choice questions on exploiting memory quiz answers PDF covers MCQ questions on Introduction of memory, virtual memory, memory hierarchies framework, caches and cache types, fallacies and pitfalls, measuring and improving cache performance, Pentium p4 and AMD Opteron memory. D) Simple segmentation 18. C - Arrays and Pointers. d) Copy overwrite MCQ Exam ON : Operating system mcq questions and answers . B. secondary memory C) Virtual memory segmentation. b) it spends less time paging than executing Answer C. virtual memory Explanation: Following are the advantages of Demand Paging : Large virtual memory, More efficient use of memory, There is no limit on degree of multiprogramming. Virtual Memory MCQs Questions Answers in Operating Systems is the set of important MCQs of virtual memory. Which of the following is/are the characteristics of virtual memory segmentation i) Main memory not partitioned ii) Program broken into pages by the compiler or memory management system iii) No internal fragmentation iv) External fragmentation A) i, ii and iii only B) ii, iii and iv only C) i, … b) Logical paging Cloud Computing MCQ Quiz & Online Test: Below is few Cloud Computing MCQ test that checks your basic knowledge of Cloud Computing. Cyber Crime Solved MCQs Questions Answers. D. None of the above. Executing a program, if the number of tables and amount of overhead! 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