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Cognizant Bigdata and Hadoop Developer Interview Questions and Answers

Updated 28 Oct 2023

Cognizant Bigdata and Hadoop Developer Interview Experiences

1 interview found

Bigdata and Hadoop Developer Interview Questions & Answers

user image Anonymous

posted on 28 Oct 2023

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Recruitment Consulltant and was interviewed in Sep 2023. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Basic questions on Hive Apache Sqoop basic commands Bucketing & Partitioning techniques
    • Add your answer
  • Q2. Hive Optimization Techniques
  • Ans. 

    Hive optimization techniques improve query performance by optimizing data storage and query execution.

    • Partitioning tables based on commonly used columns to reduce data scanned during queries

    • Using bucketing to evenly distribute data across files for faster query processing

    • Using appropriate file formats like ORC or Parquet for efficient storage and retrieval

    • Optimizing joins by broadcasting smaller tables or using map-sid...

    • Answered by AI
    Add your answer
  • Q3. Hive scenario based Questions
    • Add your answer
  • Q4. Working of Hive
  • Ans. 

    Hive is a data warehousing tool built on top of Hadoop for querying and analyzing large datasets stored in Hadoop Distributed File System (HDFS).

    • Hive uses a SQL-like query language called HiveQL to process data.

    • It translates HiveQL queries into MapReduce jobs to execute on Hadoop.

    • Hive organizes data into tables, partitions, and buckets for efficient querying.

    • It supports external tables for data stored outside of HDFS.

    • H...

    • Answered by AI
    Add your answer
  • Q5. HQL vs SQL difference
  • Ans. 

    HQL is used for querying data stored in Hadoop, while SQL is used for querying data stored in relational databases.

    • HQL is used in Apache Hive for querying data stored in Hadoop Distributed File System (HDFS)

    • SQL is used for querying data stored in relational databases like MySQL, PostgreSQL, etc.

    • HQL supports complex data types like arrays and maps, which are not supported in SQL

    • HQL queries are converted into MapReduce j...

    • Answered by AI
    Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Better to know the basics, Just go with their JD to understand what skillset they are expecting in you

Skills evaluated in this interview

Interview questions from similar companies

Hadoop Administrator Interview Questions & Answers

IBM user image Anonymous

posted on 19 Oct 2023

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. It was around 1 hour, panel asks different technical questions about relevant skillsets.
    • Add your answer
  • Q2. Most of questions was troubleshooting-scenario based
    • Add your answer
Round 3 - Behavioral 

(1 Question)

  • Q1. This is last round, after the manager is satisfied with knowledge of candidate, hr asks questions about packages, relocation n explain job opportunities in detailed
    • Add your answer

Hadoop Administrator Interview Questions & Answers

Accenture user image Anonymous

posted on 22 Jan 2024

Interview experience
1
Bad
Difficulty level
Hard
Process Duration
6-8 weeks
Result
-

I applied via LinkedIn and was interviewed in Jul 2023. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. While schedule the interview position closed
    • Add your answer
  • Q2. Fake update to candidates
    • Add your answer
  • Q3. After schedule the interview position is closed
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - This company fake update shared to candidates. Position not available simply schduled the interview

Hadoop Administrator Interview Questions & Answers

Capgemini user image Anonymous

posted on 19 Mar 2024

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Mar 2023. There were 3 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Hadoop architecture
    • Add your answer
  • Q2. Spark architecture
    • Add your answer
  • Q3. Tell me about project details
    • Add your answer
Round 2 - Technical 

(1 Question)

  • Q1. Vhakns jdnnndn kksnnnd
    • Add your answer
Round 3 - One-on-one 

(1 Question)

  • Q1. Gh bbbb hshvs hshzb
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't lie in a interview, if you don't know say direct no.

If you catch by lie you direct

Hadoop Administrator Interview Questions & Answers

Infosys user image Anonymous

posted on 8 Jan 2025

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Jan 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What is your current role and responsibilities
    • Add your answer
  • Q2. What is hadoop
    • Add your answer
Round 2 - HR 

(1 Question)

  • Q1. What is zookeeper
    • Add your answer

Hadoop Administrator Interview Questions & Answers

HCLTech user image Arulkumar Nataraj

posted on 14 Apr 2022

Round 1 - Technical 

(3 Questions)

  • Q1. About day to day activities,
    • Add your answer
  • Q2. About handson knowledge
    • Add your answer
  • Q3. Scenario base questions
    • Add your answer
Round 2 - HR 

(1 Question)

  • Q1. About package and past experience
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident what you have working and update your skill up-to-date

Hadoop and Spark Developer Interview Questions & Answers

TCS user image Anonymous

posted on 19 Sep 2022

Round 1 - One-on-one 

(1 Question)

  • Q1. About spark optimization and types of transformation, DAG
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare some scenario based answers. Concentrate on optimization codes.

Senior Hadoop Developer Interview Questions & Answers

Genpact user image Anonymous

posted on 11 May 2018

I applied via Naukri.com and was interviewed before May 2017. There were 6 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Projects
    • Add your answer
  • Q2. About all the technical issues
    • Add your answer

Interview Preparation Tips

Round: Test
Experience: Production issue identification

General Tips: F2F with PM
Skills: Hive, Body Language, Problem Solving, Analytical Skills, Presentation Skills, Decision Making Skills
Duration: >3 Months

Hadoop Administrator Interview Questions & Answers

IBM user image Anonymous

posted on 29 Jun 2024

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Day today activity
    • Add your answer
  • Q2. Introduction tell me
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't trust any hr or company

Hadoop Administrator Interview Questions & Answers

Capgemini user image shambhuraj deshmukh

posted on 15 Apr 2022

Round 1 - Technical 

(1 Question)

  • Q1. What is HS2 What is hive What is check point Whats mean by namenode Explain yarn and it's architecture
  • Ans. 

    Answers to common questions related to Hadoop administration.

    • HS2 stands for HiveServer2, which is a service that enables clients to execute queries against Hive.

    • Hive is a data warehousing tool that facilitates querying and managing large datasets stored in Hadoop.

    • Checkpointing is a process of saving the current state of a running application to a stable storage.

    • NameNode is the centerpiece of HDFS, which manages the fil...

    • Answered by AI
    Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - These are basic questions and every Hadoop Admin must know about that
More about working at Cognizant
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Cognizant Interview FAQs

How many rounds are there in Cognizant Bigdata and Hadoop Developer interview?
Cognizant interview process usually has 2 rounds. The most common rounds in the Cognizant interview process are Resume Shortlist and Technical.
How to prepare for Cognizant Bigdata and Hadoop Developer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Cognizant. The most common topics and skills that interviewers at Cognizant expect are Big Data, Hadoop, Hive, Java and Python.
What are the top questions asked in Cognizant Bigdata and Hadoop Developer interview?

Some of the top questions asked at the Cognizant Bigdata and Hadoop Developer interview -

  1. Hive Optimization Techniq...read more
  2. HQL vs SQL differe...read more
  3. Working of H...read more

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Cognizant Bigdata and Hadoop Developer Interview Process

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Interview experience

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Excellent
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₹5.1 L/yr - ₹12.4 L/yr
11% more than the average Bigdata and Hadoop Developer Salary in India
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