{"id":54044,"date":"2024-04-16T00:03:28","date_gmt":"2024-04-16T00:03:28","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=54044"},"modified":"2024-04-16T00:03:28","modified_gmt":"2024-04-16T00:03:28","slug":"which-among-the-following-command-is-used-to-copy-a-directory-from-one-node-to-another-in-hdfs","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-command-is-used-to-copy-a-directory-from-one-node-to-another-in-hdfs\/","title":{"rendered":"Which among the following command is used to copy a directory from one node to another in HDFS?"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;rcp&#8221; option2=&#8221;distcp&#8221; option3=&#8221;dcp&#8221; option4=&#8221;drcp&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is: C. dcp<\/p>\n<ul>\n<li>rcp is a command-line utility for copying files and directories between hosts on a local network. It is not specific to HDFS.<\/li>\n<li>distcp is a command-line utility for copying large amounts of data between clusters in Hadoop. It is not specific to copying directories.<\/li>\n<li>dcp is a command-line utility for copying data between HDFS clusters. It can be used to copy directories, files, or a combination of both.<\/li>\n<li>drcp is not a valid command.<\/li>\n<\/ul>\n<p>dcp is a more recent command than distcp and offers a number of advantages, including:<\/p>\n<ul>\n<li>It is more efficient, as it uses multiple threads to copy data.<\/li>\n<li>It is more reliable, as it can resume a copy that has been interrupted.<\/li>\n<li>It is more secure, as it supports encryption.<\/li>\n<\/ul>\n<p>To use dcp, you must first install it on the source and destination clusters. You can then use the following command to copy a directory from one cluster to another:<\/p>\n<p><code>dcp -r source_directory destination_directory<\/code><\/p>\n<p>For example, to copy the directory \/data\/foo from the cluster h1 to the cluster h2, you would use the following command:<\/p>\n<p><code>dcp -r \/data\/foo h1:\/data\/foo<\/code><\/p>\n<p>dcp can also be used to copy files. To do this, you would use the following command:<\/p>\n<p><code>dcp source_file destination_file<\/code><\/p>\n<p>For example, to copy the file \/data\/bar from the cluster h1 to the cluster h2, you would use the following command:<\/p>\n<p><code>dcp \/data\/bar h1:\/data\/bar<\/code><\/p>\n<p>dcp is a powerful tool that can be used to copy data between HDFS clusters. It is more efficient, reliable, and secure than distcp.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;rcp&#8221; option2=&#8221;distcp&#8221; option3=&#8221;dcp&#8221; option4=&#8221;drcp&#8221; correct=&#8221;option3&#8243;]<\/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":[],"class_list":["post-54044","post","type-post","status-publish","format-standard","hentry","category-cloud-computing","no-featured-image-padding"],"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 among the following command is used to copy a directory from one node to another in HDFS?<\/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\/which-among-the-following-command-is-used-to-copy-a-directory-from-one-node-to-another-in-hdfs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which among the following command is used to copy a directory from one node to another in HDFS?\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;rcp&#8221; 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