Apache Hadoop MCQs – Part 4


Objective

After learning to Hadoop try your hands on Apache Hadoop MCQs and get to know your learning so far. Below is some multiple choice Questions corresponding to them are the choice of answers. This quiz will help you to revise the concepts of Apache Hadoop and will build up your confidence in Hadoop. Hope these questions are helpful for you.

Apache Hadoop MCQs for Hadoop Interview Preparation

 Apache Hadoop Multiple Choice Questions

Q.1 NameNode and DataNode do communicate using-

For detailed description follow: Hadoop HDFS- Architecture

Q.2 Which of the follwoing is the correct statement?

For detailed description follow: MapReduce – Data Locality

Q.3 Which of the following property gets configured on mapred-site.xml?

For detailed description follow:: Hadoop – Installation

Q.4 In which all languages you can code in Hadoop ?

For detailed description follow: Hadoop Introduction Tutorial

Q.5 Which of the following is used to ingest streaming data into Hadoop clusters?

For detailed description follow: Hadoop – Ecosystem

Q.6 Which of the following is true about MapReduce?

For detailed description follow: MapReduce Introduction Tutorial

Q.7 Keys from the output of shuffle and sort implement which of the following interface?

Q.8 Which of the following phases occur simultaneously ?

For detailed description follow: MapReduce-Data Flow

Q.9 Which of the following is a data processing engine for clustered computing?

For detailed description follow: Hadoop – Ecosystem

Q.10 If the IP address or hostname of a datanode changes

For detailed description follow: Hadoop HDFS- Architecture

Q.11 Which scenario demands highest bandwidth for data transfer between nodes

For detailed description follow: HDFS Introduction Tutorial

Q.12 HDFS is inspired by which of following Google project

For detailed description follow: HDFS Introduction Tutorial

Q.13 When a backup node is used in a cluster there is no need of which of the following?

For detailed description follow: Hadoop Introduction Tutorial

Q.14 All the files in a directory in HDFS can be merged together using which of the following?

For detailed description follow: HDFS – Commands Module

Q.15 Can multiple clients write into an HDFS file concurrently?

For detailed description follow: HDFS – Read-Write Operations

Q.16 Which of the following command is used to enter Safemode?

For detailed description follow: Safemode in Hadoop

Q.17 Output of Mapper is stored on-

For detailed description follow: MapReduce – Mapper

Q.18 In which InputFormat tab character (‘/t’) is used?

For detailed description follow: MapReduce – InputFormat

Q.19 Which statement is true about Safemode?

For detailed description follow: Safemode in Hadoop

Q.20 In which mode all daemons execute in separate nodes?

For detailed description follow: Hadoop Introduction tutorial

For any query related to these Apache Hadoop MCQs, do leave a comment in a section given below.

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