Besant Technologies

1) What do you mean by Hadoop? Hadoop i s an open source software framework for processing and storing big size data in a distributed fashion on large clusters of commodity hardware. 2) W hat do you mean by Hadoop framework? A Hadoop is free Java based programming framework which supports the processing of big data sets in a distributed computing environment. 3)What do you mean by Hadoop MapReduce? Hadoop MapReduce framework is used for processing large data sets in parallel across a hadoop cluster. The two step map and reduces process uses by data analysis. 4)What is the NameNode in Hadoop? The NameNode in Hadoop is the node, where Hadoop stores all the file location information in Hadoop Distributed File System (HDFS).  In other words, we can say that NameNode is the centerpiece of a Hadoop Distributed File System. 5)Can we change the file cached by Distributed Cache in Hadoop? No, because the DistributedCache tracks the caching with timestamp a cached file sho

1) What is Big Data? Big Data  is nothing but an assortment of such a huge and complex data that it becomes very tedious to capture, store, process, retrieve and analyze it with the help of on-hand database management tools or traditional data processing techniques. 2) How is the analysis of Big Data useful for organization? Effective analysis of Big Data provides a lot of business advantage as organizations will learn which areas to focus on and which areas are less important. Big data analysis provides some early key indicators that can prevent the company from a huge loss or help in grasping a great opportunity with open hands! A precise analysis of Big Data helps in decision making! For instance, nowadays people rely so much on Facebook and Twitter before buying any product or service. All thanks to the Big Data explosion. 3) What is difference between traditional RDBMS and Hadoop ? Traditional RDBMS is used for transactional systems to report and archive the