Hadoop Objective Questions with Answers – Part 6


Objective

Revise your Apache Hadoop concepts with Hadoop quiz questions and build-up your confidence in the most common framework of Bigdata. These Hadoop objective questions are designed to cover the concepts of all Hadoop ecosystem components like MapReduce, HDFS, YARN, Hive etc. Hope this Hadoop quiz will help you in Hadoop interview preparation.

Apache Hadoop Objective Questions with Answers for best Hadoop Interview Preparation.

Top Hadoop Objective Questions and Answers

Q.1 All of the following accurately describe Hadoop, EXCEPT-

For detailed description follow: Hadoop Introduction tutorial

Q.2 Which tool could be used to move data from RDBMS data to HDFS?

For detailed description follow: Hadoop Ecosystem

Q.3 Which of these provides a Stream processing system used in Hadoop ecosystem?

For detailed description follow: Hadoop Ecosystem

Q.4 During Safemode Hadoop cluster is in-

For detailed description follow: Safemode in Hadoop

Q.5 Which one of the following statements is false about Distributed Cache?

For detailed description follow: Hadoop – Distributed Cache

Q.6 Which among the folloing are the features of Hadoop

For detailed description follow: Hadoop Introduction tutorial

Q.7 The need for data replication can arise in various scenarios like-

Q.8 For the frequently accessed HDFS files the blocks are cached in-

For detailed description follow: Hadoop – Distributed Cache

Q.9 Clients connect to ________ for I/O

For detailed description follow: Hadoop HDFS-Architecture

Q.10 The HDFS command to create the copy of a file from a local system is which of the following?

For detailed description follow: Hadoop HDFS-Commands

Q.11 Is it mandatory to set input and output type/format in MapReduce?

For detailed description follow: MapReduce dataflow

Q.12 Which of the following permits to use multiple Mapper classes within a single Map task

For detailed description follow: MapReduce-Mapper

Q.13 Which of the following command is used to set the number of reducers for the job?

For detailed description follow: MapReduce-Reducer

Q.14 Which among following is true about KeyValueTextInputFormat-

For detailed description follow: MapReduce-InputFormat

Q.15 Which of the following is not a complex data type in Hive?

For detailed description follow: Hive Introduction Tutorial

Q.16 The drawback of managed tables in hive is-

For detailed description follow: Hive Introduction Tutorial

Q.17 What is the default size of distributed cache ?

For detailed description follow: Hadoop – Distributed Cache

Q.18 In which mode each daemon runs on a single node as a single java process?

For detailed description follow: Hadoop Introduction tutorial

Q.19 HDFS provides a command line interface called __________ used to interact with HDFS

For detailed description follow: HDFS Tutorial

Q.20 Which of the follwing is the faeture of PIG?

For detailed description follow: Pig Introduction

If you have any query about these Apache Hadoop objective questions, so, let us know by leaving a comment.

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