{"id":15353,"date":"2024-04-15T04:46:45","date_gmt":"2024-04-15T04:46:45","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=15353"},"modified":"2024-04-15T04:46:45","modified_gmt":"2024-04-15T04:46:45","slug":"the-cpu-after-receiving-an-interrupt-from-an-i-o-device-a-halts-for-a-predetermined-time-b-hands-over-control-of-address-bus-and-data-bus-to-the-interrupting-device-c-branches-off-to-the-interrupt","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-cpu-after-receiving-an-interrupt-from-an-i-o-device-a-halts-for-a-predetermined-time-b-hands-over-control-of-address-bus-and-data-bus-to-the-interrupting-device-c-branches-off-to-the-interrupt\/","title":{"rendered":"The CPU, after receiving an interrupt from an I\/O device A. halts for a predetermined time B. hands over control of address bus and data bus to the interrupting device C. branches off to the interrupt service routine immediately D. branches off to the interrupt service routine after completion of the current instruction 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_6a9f023525768\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    halts for a predetermined time                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    hands over control of address bus and data bus to the interrupting device                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    branches off to the interrupt service routine immediately                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    branches off to the interrupt service routine after completion of the current instruction 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>C. branches off to the interrupt service routine immediately<\/strong>.<\/p>\n<p>When an interrupt is received, the CPU saves the current state of the processor (including the instruction pointer, program counter, and status register) and then branches to the interrupt service routine. The interrupt service routine then handles the interrupt and, when it is finished, returns to the instruction that was interrupted.<\/p>\n<p>Option A is incorrect because the CPU does not halt for a predetermined time. It branches <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 <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> 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> to the interrupt service routine immediately.<\/p>\n<p>Option B is incorrect because the CPU does not hand over control of the address bus and data bus to the interrupting device. The CPU retains control of the address bus and data bus during the interrupt service routine.<\/p>\n<p>Option D is incorrect because the CPU does not branch off to the interrupt service routine after completion of the current instruction. It branches to the interrupt service routine immediately.<\/p>\n<p>Option E is incorrect because the CPU does branch off to the interrupt service routine immediately.<\/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>The CPU, after receiving an interrupt from an I\/O device A. halts for a predetermined time B. hands over control of address bus and data bus to the interrupting device C. branches off to the interrupt service routine immediately D. branches off to the interrupt service routine after completion of the current instruction E. 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