{"id":49201,"date":"2024-04-15T22:52:18","date_gmt":"2024-04-15T22:52:18","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=49201"},"modified":"2024-04-15T22:52:18","modified_gmt":"2024-04-15T22:52:18","slug":"point-out-the-wrong-statement-17","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/point-out-the-wrong-statement-17\/","title":{"rendered":"Point out the wrong statement."},"content":{"rendered":"<p>[amp_mcq option1=&#8221;the mapper outputs are sorted and then partitioned per reducer&#8221; option2=&#8221;the total number of partitions is the same as the number of reduce tasks for the job&#8221; option3=&#8221;the intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format&#8221; option4=&#8221;none of the mentioned&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is: C. the intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format.<\/p>\n<p>The intermediate, sorted outputs are stored in a format that is specific to the Hadoop implementation. For example, in Hadoop 2.x, the intermediate, sorted outputs are stored in a sequence file format.<\/p>\n<p>The following is a brief explanation of each option:<\/p>\n<ul>\n<li>A. the mapper outputs are sorted and then partitioned per reducer: This is correct. The mapper outputs are sorted by key and then partitioned per reducer.<\/li>\n<li>B. the total number of partitions is the same as the number of reduce tasks for the job: This is correct. The total number of partitions is the same as the number of reduce tasks for the job.<\/li>\n<li>C. the intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format: This is incorrect. The intermediate, sorted outputs are stored in a format that is specific to the Hadoop implementation.<\/li>\n<li>D. none of the mentioned: This is incorrect. Option C is the only incorrect option.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;the mapper outputs are sorted and then partitioned per reducer&#8221; option2=&#8221;the total number of partitions is the same as the number of reduce tasks for the job&#8221; option3=&#8221;the intermediate, sorted outputs are always stored in a simple (key-len, key, value-len, value) format&#8221; option4=&#8221;none of the mentioned&#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-49201","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>Point out the wrong statement.<\/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\/point-out-the-wrong-statement-17\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Point out the wrong statement.\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;the mapper outputs are sorted and then partitioned per reducer&#8221; 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