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Collabera Technologies Data Engineer Interview Questions and Answers

Updated 9 May 2022

Collabera Technologies Data Engineer Interview Experiences

2 interviews found

Data Engineer Interview Questions & Answers

user image akshay pathania

posted on 9 May 2022

I applied via Approached by Company and was interviewed in Nov 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Normalisation of database, views,stored procedures
  • Ans. 

    Normalization is a process of organizing data in a database to reduce redundancy and improve data integrity.

    • Normalization involves breaking down a table into smaller tables and defining relationships between them.

    • It helps in reducing data redundancy and inconsistencies.

    • Views are virtual tables that are created based on the result of a query. They can be used to simplify complex queries.

    • Stored procedures are precompiled...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Nice interviews.bhgdgjnfdtubxrrikfdeijjgdryihffuijggiok

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 30 Sep 2021

I applied via Naukri.com and was interviewed in Aug 2021. There was 1 interview round.

Interview Questionnaire 

3 Questions

  • Q1. SQL basic Trigger
  • Q2. Analytics function Optimization querry
  • Q3. Store procedure
  • Ans. 

    A stored procedure is a pre-written SQL code that can be saved and reused multiple times.

    • Stored procedures improve performance by reducing network traffic and improving security.

    • They can be used to perform complex operations and automate tasks.

    • Stored procedures can be called from other programs or scripts.

    • They can also be used to enforce business rules and data integrity.

    • Examples include procedures for inserting, updat...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Please prepare what added in resume all points
Quantitative approach

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Data Engineer Interview Questions & Answers

NetApp user image Chaitanya Gaykwad

posted on 26 Nov 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What are joins and its type
  • Q2. Tell me about Dax query
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I was interviewed in Aug 2024.

Round 1 - Technical 

(5 Questions)

  • Q1. Questions on Pyspark
  • Q2. Questions on SQL
  • Q3. Transformations
  • Q4. Questions on Sql optimizations
  • Q5. Questions About my current Project
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
No response

I applied via LinkedIn and was interviewed in Jan 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. What is Pyspark?
  • Ans. 

    Pyspark is a Python API for Apache Spark, a powerful open-source distributed computing system.

    • Pyspark is used for processing large datasets in parallel across a cluster of computers.

    • It provides high-level APIs in Python for Spark programming.

    • Pyspark allows seamless integration with other Python libraries like Pandas and NumPy.

    • Example: Using Pyspark to perform data analysis and machine learning tasks on big data sets.

  • Answered by AI
  • Q2. What is Pyspark SQL?
  • Ans. 

    Pyspark SQL is a module in Apache Spark that provides a SQL interface for working with structured data.

    • Pyspark SQL allows users to run SQL queries on Spark dataframes.

    • It provides a more concise and user-friendly way to interact with data compared to traditional Spark RDDs.

    • Users can leverage the power of SQL for data manipulation and analysis within the Spark ecosystem.

  • Answered by AI
  • Q3. How to merge 2 dataframes of different schema?
  • Ans. 

    To merge 2 dataframes of different schema, use join operations or data transformation techniques.

    • Use join operations like inner join, outer join, left join, or right join based on the requirement.

    • Perform data transformation to align the schemas before merging.

    • Use tools like Apache Spark, Pandas, or SQL to merge dataframes with different schemas.

  • Answered by AI
  • Q4. What is Pyspark streaming?
  • Ans. 

    Pyspark streaming is a scalable and fault-tolerant stream processing engine built on top of Apache Spark.

    • Pyspark streaming allows for real-time processing of streaming data.

    • It provides high-level APIs in Python for creating streaming applications.

    • Pyspark streaming supports various data sources like Kafka, Flume, Kinesis, etc.

    • It enables windowed computations and stateful processing for handling streaming data.

    • Example: C...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Luxoft Data Engineer interview:
  • Pyspark

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
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. SQL questions and partitioning
  • Q2. 3rd highest salary
Round 3 - One-on-one 

(2 Questions)

  • Q1. Technical interview
  • Q2. SQL and data warehousing

Interview Preparation Tips

Interview preparation tips for other job seekers - Got offer within a week
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I was interviewed in Jan 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. What joins you used
  • Ans. 

    I have used various types of joins including inner join, left join, right join, and full outer join.

    • Used inner join to retrieve records that have matching values in both tables

    • Utilized left join to retrieve all records from the left table and matching records from the right table

    • Employed right join to retrieve all records from the right table and matching records from the left table

    • Utilized full outer join to retrieve ...

  • Answered by AI
  • Q2. Write query for joins
  • Ans. 

    Query for joins in SQL to combine data from multiple tables

    • Use JOIN keyword to combine data from two or more tables based on a related column

    • Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

    • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Not Selected

I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Coding Test 

Just focus on the basics of pyspark.

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Jul 2023. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Aptitude Test 

Logical questions, mathematics and general knowledge.

Round 3 - HR 

(1 Question)

  • Q1. Check your communication skills face to face in English.
Round 4 - Technical 

(1 Question)

  • Q1. Basic knowledge questions for system and logical questions.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Aptitude Test 

There are one hour exam

Round 2 - Technical 

(1 Question)

  • Q1. Advance level of sql and python
  • Ans. 

    Advanced level of SQL and Python skills are essential for a Data Engineer role.

    • Strong understanding of SQL queries, joins, subqueries, and optimization techniques.

    • Proficiency in writing complex Python scripts for data manipulation, analysis, and automation.

    • Experience with data modeling, ETL processes, and working with large datasets.

    • Knowledge of data warehousing concepts and tools like SQL Server, PostgreSQL, or Snowfl...

  • Answered by AI
Round 3 - Behavioral 

(2 Questions)

  • Q1. Basic of SQL,some join condition
  • Q2. Basic of python

Skills evaluated in this interview

Collabera Technologies Interview FAQs

How many rounds are there in Collabera Technologies Data Engineer interview?
Collabera Technologies interview process usually has 1 rounds. The most common rounds in the Collabera Technologies interview process are Technical.
How to prepare for Collabera Technologies Data Engineer 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 Collabera Technologies. The most common topics and skills that interviewers at Collabera Technologies expect are Python, SQL, Spark, Big Data and Hadoop.
What are the top questions asked in Collabera Technologies Data Engineer interview?

Some of the top questions asked at the Collabera Technologies Data Engineer interview -

  1. Normalisation of database, views,stored procedu...read more
  2. Store proced...read more
  3. Analytics function Optimization quer...read more

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Collabera Technologies Data Engineer Salary
based on 30 salaries
₹4.8 L/yr - ₹15 L/yr
5% less than the average Data Engineer Salary in India
View more details

Collabera Technologies Data Engineer Reviews and Ratings

based on 3 reviews

2.5/5

Rating in categories

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Skill development

2.5

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2.2

Salary

1.0

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1.5

Company culture

1.9

Promotions

1.0

Work satisfaction

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