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