{"id":4383,"date":"2024-03-05T16:05:23","date_gmt":"2024-03-05T16:05:23","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=4383"},"modified":"2024-03-05T16:05:23","modified_gmt":"2024-03-05T16:05:23","slug":"the-device-by-which-data-are-transferred-by-telephone-with-the-help-of-binary-signals-is","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-device-by-which-data-are-transferred-by-telephone-with-the-help-of-binary-signals-is\/","title":{"rendered":"The device by which data are transferred by telephone with the help of binary signals, is"},"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_6a96f100ed060\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    Modem                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Analog                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Monitor                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    O.C.R.                <\/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 (a) Modem.<\/p>\n<p>A modem is a device that modulates and demodulates signals. It is used to convert digital signals into analog signals that can be transmitted over telephone lines, and vice versa. This allows computers to communicate with each other over the telephone network.<\/p>\n<p>An analog signal is a continuous signal that can take on any value within a given range. A digital signal is a <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               <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>  <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> discrete signal that can only take on a finite number of values.<\/p>\n<p>A monitor is a device that displays information from a computer. It can be a cathode ray tube (CRT) monitor, a liquid crystal display (LCD) monitor, or a plasma display.<\/p>\n<p>An O.C.R. (optical character recognition) is a device that converts printed text into digital text. It is used to scan documents and convert them into files that can be edited or stored on a computer.<\/p>\n<p>In conclusion, the correct answer is (a) Modem. A modem is a device that modulates and demodulates signals. It is used to convert digital signals into analog signals that can be transmitted over telephone lines, and vice versa. This allows computers to communicate with each other over the telephone network.<\/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":[31],"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 device by which data are transferred by telephone with the help of binary signals, is<\/title>\n<meta name=\"description\" content=\"A modem is a device that modulates and demodulates signals. It is used to convert digital signals into analog signals that can be transmitted over telephone lines, and vice versa. 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It is used to convert digital signals into analog signals that can be transmitted over telephone lines, and vice versa. This allows computers to communicate with each other over the telephone network.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/the-device-by-which-data-are-transferred-by-telephone-with-the-help-of-binary-signals-is\/","og_locale":"en_US","og_type":"article","og_title":"The device by which data are transferred by telephone with the help of binary signals, is","og_description":"A modem is a device that modulates and demodulates signals. It is used to convert digital signals into analog signals that can be transmitted over telephone lines, and vice versa. This allows computers to communicate with each other over the telephone network.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-device-by-which-data-are-transferred-by-telephone-with-the-help-of-binary-signals-is\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-03-05T16:05:23+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/the-device-by-which-data-are-transferred-by-telephone-with-the-help-of-binary-signals-is\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-device-by-which-data-are-transferred-by-telephone-with-the-help-of-binary-signals-is\/","name":"The device by which data are transferred by telephone with the help of binary signals, is","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-03-05T16:05:23+00:00","dateModified":"2024-03-05T16:05:23+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"A modem is a device that modulates and demodulates signals. It is used to convert digital signals into analog signals that can be transmitted over telephone lines, and vice versa. 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