{"id":19342,"date":"2024-04-15T05:38:11","date_gmt":"2024-04-15T05:38:11","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19342"},"modified":"2024-04-15T05:38:11","modified_gmt":"2024-04-15T05:38:11","slug":"a-function-can-a-return-a-value-b-perform-a-task-c-change-value-of-actual-arguments-in-call-by-reference-d-a-b-c-above-are-all-true-e-none-of-the-above","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-function-can-a-return-a-value-b-perform-a-task-c-change-value-of-actual-arguments-in-call-by-reference-d-a-b-c-above-are-all-true-e-none-of-the-above\/","title":{"rendered":"A function can A. return a value B. perform a task C. change value of actual arguments in call by reference D. a, b, c above are all true 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_6ac381a0b9bd1\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    return a value                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    perform a task                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    change value of actual arguments in call by reference                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"true\">\r\n                    a, b, c above are all true 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 D.<\/p>\n<p>A function can return a value, perform a task, and change the value of actual arguments in call by reference.<\/p>\n<p>A function is a block of code that can <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> be called repeatedly. It can take input values, called arguments, and produce output values, called return values. Functions are often used to group related code together and to make code more modular and reusable.<\/p>\n<p>When a function is called, the arguments are passed to the function and the function&#8217;s code is executed. The function can then return a value, which can be used by the code that called the function.<\/p>\n<p>Functions can also change the value of actual arguments. This is called call by reference. When a function is called by reference, the actual argument is passed to the function as a reference to the variable in the calling code. This means that the function can change the value of the variable in the calling code.<\/p>\n<p>Here is an example of a function that returns a value:<\/p>\n<p><code>def add_numbers(x, y):<br \/>\n return x + y<\/code><\/p>\n<p>This function takes two arguments, x and y, and returns the sum of x and y.<\/p>\n<p>Here is an example of a function that performs a task:<\/p>\n<p><code>def print_message():<br \/>\n print(\"Hello, world!\")<\/code><\/p>\n<p>This function does not return a value, but it does print the message &#8220;Hello, world!&#8221; to the console.<\/p>\n<p>Here is an example of a function that changes the value of <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> an actual argument:<\/p>\n<p><code>def change_value(x):<br \/>\n x = 10<\/code><\/p>\n<p>This function takes one argument, x, and changes the value of x to 10.<\/p>\n<p>In conclusion, a function can return a value, perform a task, and change the value of actual arguments in call by reference.<\/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":[683],"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>A function can A. return a value B. perform a task C. change value of actual arguments in call by reference D. a, b, c above are all true E. 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