A) Fixed partitioning 20. c) counting based page replacement algorithm b)page-fault rate Answer: a Explanation: None. 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 C. Memory References C - Matrices. A. COW stands for? d) Copy overwrite, 15. d) Copy overwrite b) first page of a process 7-9. 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. Answer d)prior fragmentation 4. b) processes The physical memory is not as large as the address space spanned by the processor. b) it spends less time paging than executing b) Logical paging b)least recently used algorithm, 9. Answer C. Logical Memory c) modularity A. Best-Fit B. Worst-Fit C. First-Fit D. None of them. d)Page fault, 2.a process is copied into the main memory from the secondary memory B. c) secondary memory, 5. 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, … a) page fault occurs A. This section focuses on "Virtual Memory" in Operating System. c) Priority allocation Solution: The Memory Address Register contains the address of the memory location that is to be read from or stored into. Answer b) Copy overwrite Answer Primary Memory d)Page fault Effective access time is directly proportional to When a program tries to access a page that is mapped in address space but not loaded in physical memory, then what occurs 12,21,60,123,7,9 Large virtual memory. 6. consider the following sequence of addresses : 123,215,600,1234,76,96. MCQ of Computer Organization. Cloud Computing MCQ Quiz & Online Test: Below is few Cloud Computing MCQ test that checks your basic knowledge of Cloud Computing. 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. d) Compaction d) no error occurs a) Simple allocation Internal Fragmentation B. D. Secondary Memory, Explanation: A computer can address more memory than the amount physically installed on the system. C) Virtual memory segmentation. Multiple choice questions on instruction level parallelism quiz answers PDF covers MCQ questions on … Virtual memory, apart from overcoming the main memory size limitation, allows sharing of main memory among processes. 2: Some programs do not exhibit Locality of reference. 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. Physical Memory Number of tables and amount of processor overhead for handling page interrupts are greater than in the case of the simple paged management techniques. C. page fault occurs B) Simple Paging 14. B. newest page 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. Answer 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. Because of virtual memory, the memory can be shared among _____ a) processes b) threads c) instructions d) none of the mentioned View Answer. Home / All Categories / Operating System / Virtual Memory / 1. b) Object D. Page References. a) oldest page is chosen d) Memory control 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. D. Least Recently Used. These computer memory questions and answers are very important for bank exams and other competitive exams. Answer: … _____ is the concept in which a process is copied into the main memory from the secondary memory according to the requirement. a) True C. page fault B. c) secondary memory Answer C Programs. A computer can address more memory than the amount physically installed on the system. c) Segmentation a) True, 13. c) Thrashing Networking MCQ Software Engineering MCQ Systems Programming MCQ UNIX System MCQ Neural Networks MCQ Fuzzy Systems MCQ. B. it is spending less time paging than executing c) segmentation fault occurs b) Paging You have to select the right answer to a question. 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. C. Most frequently Used D. processor fault. 31. This extra memory is actually called virtual memory, A. memory mapping unit Memory tables are used to … A. oldest page A. c) Demand Paging, 14. This section focuses on "Virtual Memory" in Operating System. B. A way to … a) True b) False Answer : A 32. b) primary memory The memory can be shared among ,because of virtual memory 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. a) Division Answer There is no limit on degree of multiprogramming. 1. a) memory access time b) Least Recurrently used, 16. 9. Explanation: A process is thrashing if it is spending more time paging than executing. 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. 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. 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. a) True b) False Answer a) True. If page size is 100, then the reference string is? 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. b) Local replacement d) none of the mentioned a) cpu B. b) File allocation c) internal fragmentation A) Fixed partitioning 16. Working set model for page replacement is based on the assumption of D. None of the above. 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. Demand Paging Virtual Memory can be implemented via? 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. Or, it could map to absolutely nowhere, and you have a segfault on your hands. More efficient use of memory. The strategies like the first fit, best fit and worst fit are used to select a _____. Answer b)External Fragmentation Answer Number 2 is certaintly not true. 7-8. a) Convert overwrite The virtual memory is Use of icons and windows are characteristics of .. interface Which is built directly on the hardware? Reference strings are generated artificially or by tracing a given system and recording the address of each memory reference. Virtual Memory can be implemented via? Answer b) external fragmentation B) virtual memory 10. D. CPU. Answer Explanation: Following are the advantages of Demand Paging : Large virtual memory, More efficient use of memory, There is no limit on degree of multiprogramming. Dec 27,2020 - Memory Management And Virtual Memory Practice Quiz - 1 | 30 Questions MCQ Test has questions of Computer Science Engineering (CSE) preparation. This extra memory is actually called ______________. More efficient use of memory. C. There is no limit on degree of multiprogramming. a) Memory sharing d) Demand paging D. All of the above. We have also provided the explanation to all the Operating Systems Virtual Memory Questions. This Cloud Computing Test contains around 20 questions of multiple choice with 4 options. 4. in which Swap space exists a)globalization 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 b) Least Recurrently used 3. Virtual memory typically located on . Explanation: Swap space exists in secondary memory. 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. 9. 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. 13. C) i, ii, iv and v only 15. 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. When there is enough memory to fit a process in memory, but the space is not contiguous we need A. a) Paging b) Demand paging c) Segmentation d) Swapping View Answer. c)Memory management Memory Management multiple choice questions and answers on Memory Management MCQ questions quiz on Memory Management objectives questions. C - Linked Lists. Due to lack of an explicit constraint on a job’s address space size. MCQ Exam ON : Operating system mcq questions and answers . C. 1,2,6,12,0,0 Large virtual memory. d) none of the mentioned Any program, no matter how small, occupies an entire partition. 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Cyber Crime Solved MCQs Questions Answers. 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. B. Frame Fault Reference String 12.Is logical Address space can be larger than physical address space? Virtual Memory a) threads a)Hit miss b) least recently used algorithm 21.technique is implemented by magnetic disk for secondary memory is called, a)Main memory c) Priority allocation, 17. 7-7. c) page fault occurs In this scheme, the operating system retrieves data from secondary storage in same-size blocks called pages. Virtual memory also permits a program’s memory to be physically noncontiguous , so that every portion can be allocated wherever space is available. a) it spends more time paging than executing d) locality, 11. what memory is called separation of user logical memory and physical memory 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 Memory Management multiple choice questions and answers on Memory Management MCQ questions quiz on Memory Management objectives questions. Which memory allocation policy allocate the largest hole to the process? The pager concerns with the GATE CSE MCQs. What allocation uses a proportional allocation scheme using priorities rather than size. c) Cut overwrite Dec 28,2020 - Test: Virtual Memory | 10 Questions MCQ Test has questions of Computer Science Engineering (CSE) preparation. Answer A. D. None of the above. 21. 1. By checking the below-provided Operating Systems Virtual Memory Questions, the applicants can know about the topic. a) additional reference bit algorithm d) Cache d) Complex division A. d) first in first out algorithm Page 2 In FIFO, ______ in main memory is the one which will be selected for replacement. d) none of the mentioned c) Slab Explanation: The string of memory references is called reference string. B) Dynamic partitioning 17. Which a process selects a replacement frame from the set of all frames. OS is hold a very good value in technical aptitudes. AnswerA, 10. This chapter cater to you MCQ and aptitude questions and answers on Operating System. 6. b)Virtual memory, 12.Is logical Address space can be larger than physical address space? Important MCQ on Related Subject _____ are specially designed computer chips reside inside other devices, such as your car or your electronic thermostat. 16. D. 0,2,6,12,0,0, Explanation: If page size is 100, then the reference string is 1,2,6,12,0,0. These computer memory questions and answers are very important for bank exams and other competitive exams.- Page 31 a) Global replacement, 18. C. virtual memory d)Preference allocation Virtual Fragmentation C. External Fragmentation D. None of them. The command to display the contents of a file fast.it Which of the following is an example of utility? B. b)Virtual memory c) internal fragmentation, 19. Answer Answer 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 b) False Database functions and procedure MCQs Answers, C++ STANDARD LIBRARY MCQs Questions Answers, Storage area network MCQs Questions Answers, FPSC Computer Instructor Syllabus preparation. While executing a program, if the program references a page which is not available in the main memory then it is known as? known as 2. Q 53. a) Swapping b)Page hit Explanation: First In First Out (FIFO) algorithm : Oldest page in main memory is the one which will be selected for replacement. 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) demand paging, 3. process is trash Answer a) it spends more time paging than executing d)Virtual memory, 22. a) entire thread The techniques which move the program blocks to or from the physical memory is called as _____. This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Memory Management”. Disadvantages. A. Page Replacement a) Allocator View Answer a) fragmentation c) hit ratio Answer LRU stands for? D) Simple segmentation 18. B. memory management unit Page-7 section-1 b)Cache c) Thrashing, 20. select the most nearest answer for one or more physically contiguous pages. b) random access Unconstrained multiprogramming. 1,2,6,12 Answer 7. Consider the following two statements, 1: Sometimes the page fault rate is increased if the number of page frames allocated is increased. a) Frames b) Segments c) Pages d) Sheets Answer : B 33. a) Global replacement c) median page is chosen b) newest page is chosen Answer Least frequently Used c) individual page of a process 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. D) Simple segmentation 19. a) Simple division Answer a) page fault occurs Page Buffering algorithm a) Less Recently used Page 3 11. b) fatal error occurs B. secondary memory c) Least Randomly used A process is thrashing if ____________, A. it is spending more time paging than executing c)Buffer d) none of the mentioned c) instructions Explanation: MMU stands for memory management unit. c) Slab 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 d)Block replacement C. main memory unit c) Demand Paging C) i, iii and iv only 11. A) Fixed partitioning 12. The program is divided into operable parts called as _____. advertisement. Which of the following are the advantage of Demand Paging? Computer Architecture MCQ DBMS MCQ Networking MCQ. C. random page b) page fault rate, 7.In FIFO page replacement algorithm, when a page must be replaced what is chosen d) locality c)Page miss Which algorithm is based on the argument that the page with the smallest count? A. d)Virtual memory C - Arrays and Pointers. B) Dynamic partitioning 13. Virtual Memory MCQs Questions Answers in Operating Systems is the set of important MCQs of virtual memory. D. swapping can not take place. d)swapping can not take place d)Least Recently used 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. 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 C - Stacks and Queues. This facilitates process relocation. 10. Which process is busy swapping pages in and out. 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Ii, iv and v only 15 to fit a process is thrashing if it is spending more Paging. S address space can be larger than physical address space can be larger than physical address can... Answers on memory Management ” or your electronic thermostat fragmentation C. External fragmentation D. None of them to a.. A 32 like the first fit, best fit and worst fit Used... Known as Test contains around 20 questions of multiple choice with 4 options map., but the space is not available in the case of the following is an example utility. While executing a program, if the number of tables and amount of processor overhead for handling page interrupts greater...