Hadoop MCQ

Hadoop MCQ

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  • 02nd Jun, 2022

Take Hadoop MCQ Test & Online Quiz To Test Your Knowledge

We have listed below the best Hadoop MCQ Questions, that check your basic knowledge of Hadoop. This Hadoop MCQ Test contains 25 Multiple Choice Questions. These Hadoop MCQs are very popular & asked various times in Hadoop Exams/Interviews, So practice these questions carefully. You have to select the right answer to every question to check your final preparation. Apart from this, you can also download below the Hadoop MCQ PDF completely free.

Hadoop MCQ Quiz

1) Hadoop was written in

  • A. Perl
  • B.Java (software platform)
  • C.Java (programming language)
  • D.Python

2) Hadoop run on the .............

  • A. Debian
  • B.Unix-like
  • C.Bare metal
  • D.Cross-platform

3) Pick out the correct statement.

  • A. Hadoop 2.0 allows live stream processing of real-time data
  • B.Hadoop do need specialized hardware to process the data
  • C.In Hadoop programming framework output files are divided into lines or records
  • D.All of the above

4) What is the most popular high-level Java API in Hadoop Ecosystem?

  • A. HCatalog
  • B.Scalding
  • C.Cascalog
  • D.Cascading

5) Which of the following is the advantages of 3x replication schema in Hadoop?

  • A. High availability
  • B.Fault tolerance
  • C.Reliability
  • D.All of the above
Download Free : Hadoop MCQ PDF

6) Which of the configuration file is used to control the HDFS replication factor?

  • A. hdfs-site.xml
  • B.mapred-site.xml
  • C.core-site.xml
  • D.yarn-site.xml

7) Which of the following is the default size of distributed cache?

  • A. 8 GB
  • B.10 GB
  • C.16 GB
  • D.32 GB

8) Which of the following command is used to check the status of all daemons running in the HDFS?

  • A. jps
  • B.distcp
  • C.fsck
  • D.None of the above

9) Which of the following statement is incorrect about Hadoop?

  • A. It runs with commodity hard ware
  • B.It is best for live streaming of data
  • C.It is a part of the Apache project sponsored by the ASF
  • D.All of the above

10) Which of the following is the most popular NoSQL database for scalable big data store with Hadoop?

  • A. MongoDB
  • B.Hbase
  • C.Cassandra
  • D.None of the above

11) What is a pluggable Map/Reduce scheduler for Hadoop which provides a way to share large clusters?

  • A. Flow Scheduler
  • B.Capacity Scheduler
  • C.Data Scheduler
  • D.None of the above

12) Which of the following hdfs command is used to check for various inconsistencies?

  • A. fsk
  • B.fsck
  • C.fetchdt
  • D.None of the above

13) Which of the following command is used to copy file or directories recursively?

  • A. dcp
  • B.dtcp
  • C.distc
  • D.distcp

14) What is the common reason to restart hadoop process?

  • A. React to incidents
  • B.Remove worker nodes
  • C.Upgrade Hadoop
  • D.All of the above

15) Pig operates in mainly ......... nodes?

  • A. 2
  • B.3
  • C.4
  • D.5

16) ................. operator is used to view the map reduce execution plans.

  • A. Dump
  • B.Store
  • C.Explain
  • D.Describe

17) What is the shortcut for DUMP operator?

  • A. \q
  • B.\d alias
  • C.\de alias
  • D.None of the above

18) Which of the following option allows users to read or write Avro data as Hive tables?

  • A. SqlSerde
  • B.HiveSerde
  • C.AvroSerde
  • D.All of the above

19) Which of the following option is used for machine learning on Hadoop?

  • A. Hive
  • B.HBase
  • C.Pig
  • D.Mahoot

20) Does HDFS allow a client to read a file which is already opened for writing?

  • A. Yes
  • B.No

21) The heartbeat signal are sent from ................

  • A. Jobtracker to namenode
  • B.Tasktracker to namenode
  • C.Jobtracker to namenode
  • D.Tasktracker to Job tracker

22) The commercial applications of Hadoop include ...............

  • A. Marketing analytics
  • B.Image processing
  • C.Web crawling
  • D.All of the Above

23) Hadoop is distributed under .................

  • A. Shareware
  • B.Commercial
  • C.Apache License 2.0
  • D.Mozilla Public License

24) Which of the following is most popular high-level Java API in Hadoop Ecosystem?

  • A. Scalding
  • B.Cascalog
  • C.HCatalog
  • D.Cascading

25) How many formats of SequenceFile are present in Hadoop I/O?

  • A. 2
  • B.4
  • C.3
  • D.6

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