{"id":15456,"date":"2024-04-15T04:48:00","date_gmt":"2024-04-15T04:48:00","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=15456"},"modified":"2024-04-15T04:48:00","modified_gmt":"2024-04-15T04:48:00","slug":"which-of-the-following-statement-is-true-a-the-lru-algorithm-pages-out-pages-that-have-been-used-recently-b-thrashing-is-a-natural-consequence-of-virtual-memory-systems-c-seek-analysis-is-used-fo","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statement-is-true-a-the-lru-algorithm-pages-out-pages-that-have-been-used-recently-b-thrashing-is-a-natural-consequence-of-virtual-memory-systems-c-seek-analysis-is-used-fo\/","title":{"rendered":"Which of the following statement is true. A. The LRU algorithm pages out pages that have been used recently B. Thrashing is a natural consequence of virtual memory systems. C. Seek analysis is used for analysing control-unit busy problems. D. All of the above E. None of the above"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a9a8bb956e1c\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    The LRU algorithm pages out pages that have been used recently                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"true\">\r\n                    Thrashing is a natural consequence of virtual memory systems.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Seek analysis is used for analysing control-unit busy problems.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    All of the above E. None of the above                <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is: <strong>B. Thrashing is a natural consequence of virtual memory systems.<\/strong><\/p>\n<ul>\n<li><strong>A. The LRU algorithm pages out pages that have been used recently<\/strong> is incorrect. The LRU algorithm pages out pages that have not been used recently.<\/li>\n<li><strong>C. Seek analysis is used for analysing control-unit busy problems<\/strong> is <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div> incorrect. Seek analysis is used for analyzing disk <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n                    <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> access patterns.<\/li>\n<li><strong>D. All of the above<\/strong> is incorrect. Only option B is true.<\/li>\n<li><strong>E. None of the above<\/strong> is correct. Only option B is true.<\/li>\n<\/ul>\n<p>Thrashing is a condition in which a virtual memory system spends most of its time paging, rather than executing user programs. This can happen when the amount of physical memory is too small to hold all of the pages that are currently in use. When this happens, the system has to page out pages that are currently in use in order to make room for pages that are needed. This can cause a vicious cycle, as the system spends more and more time paging, which causes it to page out even more pages, and so on.<\/p>\n<p>There are a number of ways to prevent thrashing. One way is to increase the amount of physical memory. Another way is to use a more sophisticated virtual memory system that can better manage the use of physical memory.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[670],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which of the following statement is true. A. The LRU algorithm pages out pages that have been used recently B. Thrashing is a natural consequence of virtual memory systems. C. Seek analysis is used for analysing control-unit busy problems. D. All of the above E. 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