Unbeatable Apache Hadoop Online Quiz – Part 10


Objective

To become an expert in Hadoop it is very important to revise the concepts with time. The quiz is the best way to do so. We have designed this Apache Hadoop Online Quiz to cover all the concepts of Apache Hadoop and Hadoop ecosystem components. This Hadoop Quiz also contains the answers related to the questions for the better understanding. Hope this quiz will help you for your Hadoop interview preparation.

Refer Top 100 Apache Hadoop Interview Questions and Answers.

Apache Hadoop Online Quiz Questions and Answers for Hadoop Interview Preparation

Big Data & Apache Hadoop Online Quiz Questions and Answers

Q.1 What are the advantages of HDFS federation in Hadoop?

For detailed description follow: HDFS – Federation

Q.2 Which configuration file is used to control the HDFS replication factor?

For detailed description follow: Hadoop installation

Q.3 Which of the follwing must be set true enable diskbalnecr in hdfs-site.xml?

For detailed description follow: HDFS – Disk Balancer

Q.4 Which of the folowing is used to provide multiple output to Hadoop?

For detailed description follow: MapReduce – OutputFormat

Q.5 Distributed Cache can be used in-

For detailed description follow: Hadoop – Distributed Cache

Q.6 HDFS stands for-

For detailed description follow: HDFS – Introduction Tutorial

Q.7 You can change the replication factor for all the files in a directory using command

For detailed description follow: HDFS Commands

Q.8 What is the default block size in Hadoop-1.x?

For detailed description follow: HDFS Blocks

Q.9 Which of the following command is used to restart NameNode in Hadoop?

For detailed description follow: HDFS Commands

Q.10 Is Namenode machine same as DataNode machine as in terms of hardware?

For detailed description follow: HDFS – Architecture

Q.11 Which of the following is not an input format in Hadoop?

For detailed description follow: MapReduce – InputFormat

Q.12 Which statement is true about EditLogs?

For detailed description follow: HDFS – Architecture

Q.13 Which of the following is the correct sequence of MapReduce flow?

For detailed description follow: MapReduce – Data Flow

Q.14 The process by which the system performs the sort and transfers the map outputs to the reducer as inputs is known as?

For detailed description follow: MapReduce – Shuffling-Sorting

Q.15 Identity Mapper is the default Mapper provided by Hadoop?

For detailed description follow: Identity Mapper in hadoop

Q.16 Apache Hadoop YARN stands for-

For detailed description follow: YARN Introduction Tutorial

Q.17 Which among the following is yarn node manager components-

For detailed description follow: YARN Node Manager

Q.18 Apache Pig reduces the length of codes by using multi-query approach

For detailed description follow: Pig Introduction Tutorial

Q.19 Pig script is-

For detailed description follow: Pig Introduction Tutorial

Q.20 Which is the slave daemon of Yarn?

For detailed description follow: YARN Introduction Tutorial

If you found any confusion in any question of this Apache Hadoop Online Quiz, so, feel free to share with us. We will be happy to solve your queries.

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