{"id":45463,"date":"2024-04-15T21:58:23","date_gmt":"2024-04-15T21:58:23","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=45463"},"modified":"2024-04-15T21:58:23","modified_gmt":"2024-04-15T21:58:23","slug":"the-mapper-implementation-processes-one-line-at-a-time-via-method-topic-5-2-mapreduce","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-mapper-implementation-processes-one-line-at-a-time-via-method-topic-5-2-mapreduce\/","title":{"rendered":"The Mapper implementation processes one line at a time via . . . . . . . . method. TOPIC 5.2 MAPREDUCE"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;map&#8221; option2=&#8221;reduce&#8221; option3=&#8221;mapper&#8221; option4=&#8221;reducer&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>A. map<\/strong><\/p>\n<p>The map method is the main method of the Mapper class. It is responsible for processing the input data and generating the intermediate key-value pairs. The map method is called once for each line of input data.<\/p>\n<p>The reduce method is called once for each intermediate key. It is responsible for merging the intermediate key-value pairs and generating the final output.<\/p>\n<p>The mapper and reducer are two of the main components of the MapReduce programming model. The mapper is responsible for processing the input data and generating the intermediate key-value pairs. The reducer is responsible for merging the intermediate key-value pairs and generating the final output.<\/p>\n<p>The MapReduce programming model is a programming model and an associated implementation for processing and generating large data sets. Users specify a map function that processes a key\/value pair to generate a set of intermediate key\/value pairs, and a reduce function that merges all intermediate values associated with the same intermediate key.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;map&#8221; option2=&#8221;reduce&#8221; option3=&#8221;mapper&#8221; option4=&#8221;reducer&#8221; correct=&#8221;option1&#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-45463","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>The Mapper implementation processes one line at a time via . . . . . . . . method. 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