Big Data Assessment Test

Topics covered

HDFS, Oozie
Map Reduce
Flume, Hive
Pig, Sqoop

  • MAQ (Multiple Answer Question)
  • MCQ (Multiple Choice Question)
  • Descriptive Question
  • White Board Simulator
  • Coding Simulator
  • Audio Question
  • Video Question
  • Case Study Question

Big Data is a data set term that describes the large volume of data for a structured, semi-structured and unstructured type that has the potential to be mined for information. It includes and integrates many new types of data and data management alongside traditional data. Big Data is also defined by the 4 Vs namely - Volume, Velocity, Variety, Value. A Big Data developer is a person who must have an ability to take the ownership of all business problems and define the right solutions for them. The Big Data developer also needs to interface with the product team to gather, understand and translate requirements into the agile delivery process.
 
Big Data assessment test helps recruiters and hiring managers to assess candidate’s ability to work on Hadoop, Hive, and Pig etc. Interview Mocha’s Big Data developer assessment test is created & validated by experienced subject matter experts (SMEs) to assess & hire Big Data developer as per industry standards.

Big Data skills assessment test helps you to screen the candidates who possess traits as follows:
 

1.  Working knowledge of batch frameworks 
2.  Strong experience of working on HDFS, Hive, MapReduce, etc.
3.  Excellent in performance tuning and optimization techniques
4.  Understanding of distributed querying, horizontal sharing/data partitioning concepts
 
Interview Mocha’s Big Data skills assessment test has a unique set of questions. You can also create or ask us to create a customized test that includes questions which are specific to your job-requirement.
 
Our powerful reporting helps you to analyze section wise performance of candidate to gauge his/her strengths and weaknesses. Moreover, you can always use our candidate ranking tool to screen the best performing candidate amongst others.

This pre-employment test is useful for hiring:
  • Big Data Developer
  • Big Data Specialist
  • Big Data Expert
  • Big Data Engineer
  • Big Data Consultant

Test details:

Big Data skills test will evaluate a candidate’s practical knowledge and will identify whether the candidate is ready to be employed. Big Data assessment test can be taken by the candidate from anywhere in the comfort of their time zone.

Big Data skill test may contain MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blank, Descriptive, Whiteboard Questions, Audio / Video Questions, True or False.


Test Details: 20 minutes

10 Application Questions

Big Data Assessment Test

Question #1 of 3

How to copy a file from local to HDFS?

Note: There can be multiple correct answers to this question.

    • hadoop fs -cp localfile /user/hadoop/file2

    • hadoop fs -copy localfile /user/hadoop/file2

    • hadoop fs -put localfile /user/hadoop/file2

    • hadoop fs -copyToLocal localfile /user/hadoop/file2

Question #2 of 3

Assume that we have input data file below:

1,2,3
3,1,2
5,6,3

What is the output when running this script?

A=LOAD'input1'USINGPigStorage(',') 
AS(f1:int, f2:int);
B=LOAD'input1'USINGPigStorage(',') 
AS(f1:int, f2:int);
D=UNIONB,A;
X=FILTERDBY(f1==8)OR(NOT(f1+f2>3));
dumpX;

    • (1,2)

    • (1,2)

    • Run without output

    • Syntax error

Question #3 of 3

How to drop partition in Hive?

    • hive> ALTER TABLE student DROP [IF EXISTS]
      > PARTITION (year=’1991’);

    • hive> Modify TABLE student DROP [IF EXISTS]
      > PARTITION (year=’1991’);

    • hive> Update TABLE student DROP [IF EXISTS]
      > PARTITION (year=’1991’);

    • hive> ALTER TABLE student REMOVE [IF EXISTS]
      > PARTITION (year=’1991’);

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24.00 Out of 40.00
Pass
60%
03
23 Minutes

Java EE

9/10

Hibernate

3/10

Oracle PL/SQL

7/10

Analytical Thinking

5/10

Note:If score<= 30% then its a Weakness. If score >=70% then its a Strength.

Strengths

Java EE, Oracle PL/SQL, Analytical Thinking

Weaknesses

Hibernate

Happy

It was a good test for me, the questions were on the latest technology of java on which I am currently working. It was a great experience. Thank you!

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