{"id":53448,"date":"2024-04-15T23:54:08","date_gmt":"2024-04-15T23:54:08","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=53448"},"modified":"2024-04-15T23:54:08","modified_gmt":"2024-04-15T23:54:08","slug":"in-hdfs-the-files-cannot-be","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/in-hdfs-the-files-cannot-be\/","title":{"rendered":"In HDFS the files cannot be"},"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_6a97d96748a4e\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Read                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Deleted                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    Executed                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Archived                <\/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. Executed<\/strong><\/p>\n<p>HDFS (Hadoop Distributed File System) is a distributed file system designed to store large amounts of data across commodity servers. It is a key component of the Hadoop ecosystem, which is used for big data processing and analytics.<\/p>\n<p>HDFS files are stored in blocks, which are replicated across multiple nodes in the cluster. This ensures that data is available even if some of the nodes fail.<\/p>\n<p>HDFS files can be read, written, and deleted. However, they cannot be executed. This is because HDFS is a file system, not an execution environment.<\/p>\n<p>If you need to execute a file, you can use a Hadoop application such as MapReduce or Spark. These applications can read data from HDFS and write the results to HDFS. However, they cannot execute files directly.<\/p>\n<p>Here is a brief explanation of each option:<\/p>\n<ul>\n<li>\n<p><strong>A. Read<\/strong><br \/>\nHDFS files can be read by any application that can access the HDFS filesystem. This includes Hadoop applications such as MapReduce and Spark, as well as other applications that can connect to HDFS using the Hadoop <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> Distributed File System API.<\/p>\n<\/li>\n<li>\n<p><strong>B. Deleted<\/strong><br \/>\nHDFS files can be deleted by any application that has permission to delete files from the HDFS filesystem. This includes Hadoop applications such as MapReduce and Spark, as well as other applications that can connect to HDFS using the Hadoop Distributed File System API.<\/p>\n<\/li>\n<li>\n<p><strong>C. Executed<\/strong><br \/>\nHDFS files cannot be executed. This is because HDFS is a file system, not an execution environment. If you need to execute <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> a file, you can use a Hadoop application such as MapReduce or Spark. These applications can read data from HDFS and write the results to HDFS. However, they cannot execute files directly.<\/p>\n<\/li>\n<li>\n<p><strong>D. Archived<\/strong><br \/>\nHDFS files can be archived using the Hadoop Archive (HArchive) tool. HArchive is a tool that can be used to create archives of HDFS files. These archives can then be stored on HDFS or on another file system.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>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":[728],"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>In HDFS the files cannot be<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/in-hdfs-the-files-cannot-be\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"In HDFS the files cannot be\" \/>\n<meta property=\"og:description\" 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