{"id":47971,"date":"2024-04-15T22:34:30","date_gmt":"2024-04-15T22:34:30","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=47971"},"modified":"2024-04-15T22:34:30","modified_gmt":"2024-04-15T22:34:30","slug":"which-among-the-following-is-the-duties-of-the-data-nodes","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-is-the-duties-of-the-data-nodes\/","title":{"rendered":"Which among the following is the duties of the Data Nodes"},"content":{"rendered":"

[amp_mcq option1=”manage file system namespace” option2=”stores meta-data” option3=”regulates client’s access to files” option4=”perform read-write operation as per request for the clients” correct=”option4″]<\/p>\n

The correct answer is: D. perform read-write operation as per request for the clients.<\/p>\n

Data nodes are the workhorses of a Hadoop cluster. They store the actual data, and they are responsible for performing read and write operations on that data. Data nodes are also responsible for replicating data to other nodes in the cluster, which helps to ensure that the data is always available.<\/p>\n

Option A is incorrect because the file system namespace is managed by the NameNode.<\/p>\n

Option B is incorrect because metadata is stored by the NameNode.<\/p>\n

Option C is incorrect because client access to files is regulated by the NameNode.<\/p>\n","protected":false},"excerpt":{"rendered":"

[amp_mcq option1=”manage file system namespace” option2=”stores meta-data” option3=”regulates client’s access to files” option4=”perform read-write operation as per request for the clients” correct=”option4″]<\/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-47971","post","type-post","status-publish","format-standard","hentry","category-cloud-computing","no-featured-image-padding"],"yoast_head":"\nWhich among the following is the duties of the Data Nodes<\/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-is-the-duties-of-the-data-nodes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" 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