Which of the following statements is NOT a characteristic of Hadoop? Distributed cache files can’t be accessed in Reducer. 1. Which one of the following is false about Hadoop ? D. Hadoop breaks a big data problem down into sub-problems. This set of Multiple Choice Questions & Answers (MCQs) focuses on “Big-Data”. (p199) a. Hadoop extracts data from multiple tables that have a relationship b. Hadoop breaks a big data problem down into subproblems c. Hadoop enables distributed parallel processing of huge amounts of data across inexpensive computers d. 43. 44. Hadoop Framework is written in (a) Python (b) C++ (c) Java (d) Scala 3. Which of the following statements about Hadoop is FALSE? A - When a client request comes, one of them chosen at random serves the request. D - The standby node takes periodic checkpoints of active namenode’s namespace. Which of following statement(s) are true about distcp command? Big Data - Quiz 1. ... False, if source and destination are in same cluster. Only one distributed cache file can be used in a Map Reduce job. (B) a) True . C - Datanodes send block reports to only one of the namenodes. Objective. After learning to Hadoop try your hands on Apache Hadoop MCQs and get to know your learning so far. Answers to all these Hadoop Quiz Questions are also provided along with them, it will help you to brush up your Knowledge. A. Hadoop enables distributed parallel processing of huge amounts of data across inexpensive computers. b) False . Statement 2: Task tracker is the MapReduce component on the slave machine as there are multiple slave machines. Hope these questions are helpful for you. (B) a) True. Consider the following statements: Statement 1: The Job Tracker is hosted inside the master and it receives the job execution request from the client. ... Only one distributed cache file can be used in a Map Reduce job. B. Hadoop breaks a big data problem down into subproblems. 42. 45. (a) It is a distributed framework (b) The main algorithm used in it is Map Reduce (c) It runs with commodity hard ware (d) All are true 2. (C ) a) hdfs-site.xml. A. Hadhoop enables distributed parallel processing of huge amounts of data across inexpensive computers. 28. Which of the following statements is NOT a characteristic of Hadoop? C. Hadoop is an open source software framework. Which of the following statements about Hadoop is FALSE? c) Nullwritable . Which of the following Hadoop config files is used to define the heap size? b) core-site.xml. B. Hadoop combines results into a smaller data set that is easier to analyze. b) False . Which command is used to check the status of all daemons running in the HDFS. b) False. This quiz will help you to revise the concepts of Apache Hadoop and will build up your confidence in Hadoop. Which of the following writables can be used to know value from a mapper/reducer? D. Hadoop breaks a big data problem down into sub-problems. (C) a) Text . b) IntWritable . (B) a) True . Below is some multiple choice Questions corresponding to them are the choice of answers. B. Hadoop combines results into a smaller data set that is easier to analyze. d) String . A. Hadoop enables distributed parallel processing of huge amounts of data across inexpensive computers. B - One of them is active while the other one remains powered off. This Apache Hadoop Quiz will help you to revise your Hadoop concepts and check your Big Data knowledge.It will increase your confidence while appearing for Hadoop interviews to land your dream Big Data jobs in India and abroad. 1. HaDoop does not have indicies so the entire dataset is copied in the join operation. T/F: Hadoop is not recommended to company with small amount of data but it is highly recommended if this data requires instance analysis. C. Hadoop extracts data from multiple tables that have a relationship. C. Hadoop is an open source software framework. 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