Online Hadoop MapReduce Test – Practice For Hadoop Interview

1. Hadoop Mapreduce Test

It seems that you have mastered the level  1 quiz. So are you ready for the next level? This Hadoop MapReduce test will consist of more of amateur level questions and less of the basics, so be prepared. The only motive behind this MapReduce quiz is to furnish your knowledge and build your accuracy on the questions regarding MapReduce because if you answer them correctly, that will raise your confidence ultimately leading to crack the Hadoop Interview.
Online Hadoop MapReduce Test
Online Hadoop MapReduce Test – Practice For Hadoop Interview
So, All the Best.

Q.1 In MapReduce output of Mapper is stored on

Correct! Wrong!

Q.2 Which of the following is true about combiner

Correct! Wrong!

Q.3 Which of the following is called Mini-reduce

Correct! Wrong!

Q.4 By default RecordReader uses which InputFormat for converting data into key-value pairs.

Correct! Wrong!

Q.5 What statement is true about InputSplit?

Correct! Wrong!

Q.6 Which of the following is not an input format in Hadoop?

Correct! Wrong!

Q.7 In which InputFormat tab character (‘/t’) is used

Correct! Wrong!

Q.8 Aggregation cannot be done in Mapper in MapReduce

Correct! Wrong!

Q.9 Shuffling and sorting phase in Hadoop occurs

Correct! Wrong!

Q.10 What is the correct sequence of data flow in MapReduce

a. InputFormat

b. Shuffling-Sorting

c. Mapper

d. Reducer

e. OutputFormat

Correct! Wrong!

Q.11 Which among the following is true about SequenceFileInputFormat

Correct! Wrong!

Q.12 Suppose file content is- "on the top of the Tree" then, what is key and value?

Correct! Wrong!

Q.13 Which among following is true about KeyValueTextInputFormat

Correct! Wrong!

Q.14 Which is key and value in TextInputFormat

Correct! Wrong!

Q.15 Counters validate that:

Correct! Wrong!

Q.16 Which of the following is Built-In Counters in Hadoop?

Correct! Wrong!

Q.17 Which of the following command is used to set the number of reducers for the job

Correct! Wrong!

Q.18 Which of the following is not an output format in Hadoop?

Correct! Wrong!

Q.19 Which of the following OutputFormat is used for writing to relational databases and Hbase?

Correct! Wrong!

Q.20 RecordReader handle record boundaries in Text files or Sequence files in MapReduce

Correct! Wrong!

Have you enjoyed?
You can play more Hadoop MapReduce test here, till feel free to approach us through comments.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.