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G2.com Data Engineer Interview Questions and Answers

Updated 10 Apr 2024

G2.com Data Engineer Interview Experiences

1 interview found

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 10 Apr 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Assignment 

Webscarping reviews project

Round 2 - Coding Test 

Data warehouse concept

Interview questions from similar companies

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

I applied via campus placement at The LNM Institute of information Technology, Jaipur and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. Basic Question of mySQL like inner join,left join,right join,outer join.
  • Q2. Windows function in MySQL and Basic DSA question on implementation of heap sort
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Technical 

(5 Questions)

  • Q1. Explain the project you are working on.
  • Q2. A code on python, strings.
  • Q3. Two tables given and asked how many outputs will you get if you apply inner joim
  • Q4. Versioning in aws
  • Ans. 

    Versioning in AWS allows you to manage different versions of your resources.

    • AWS S3 supports object versioning to keep multiple versions of an object in the same bucket.

    • AWS Lambda supports versioning to manage different versions of your functions.

    • AWS API Gateway supports versioning to manage different versions of your APIs.

  • Answered by AI
  • Q5. Redshift related questions

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. How to productinize Data Pipelines
  • Ans. 

    To productinize Data Pipelines, one must automate, monitor, and scale the pipeline for efficient and reliable data processing.

    • Automate the data pipeline using tools like Apache Airflow or Kubernetes

    • Monitor the pipeline for errors, latency, and data quality issues using monitoring tools like Prometheus or Grafana

    • Scale the pipeline by optimizing code, using distributed computing frameworks like Spark, and leveraging clou...

  • Answered by AI
  • Q2. How does big query works
  • Ans. 

    BigQuery is a fully-managed, serverless data warehouse that enables scalable analysis over petabytes of data.

    • BigQuery uses a distributed architecture to process and analyze large datasets quickly.

    • It allows users to run SQL-like queries on datasets stored in Google Cloud Storage.

    • BigQuery automatically scales to handle large amounts of data and can be integrated with other Google Cloud services.

    • It supports real-time data...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn how to run a pipeline in production

Skills evaluated in this interview

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

I applied via Company Website and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - Coding Test 

It was Python coding and Sql query assessment round.

Round 2 - One-on-one 

(2 Questions)

  • Q1. Perform task on joins?
  • Ans. 

    Joins are used to combine rows from two or more tables based on a related column between them.

    • Use JOIN keyword to combine tables based on a common 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
  • Q2. Explain projects
  • Ans. 

    Projects are specific tasks or assignments that require a set of skills and resources to complete.

    • Projects are temporary endeavors with a defined beginning and end.

    • They are unique, with specific goals, deliverables, and constraints.

    • Projects require a team of individuals with different roles and responsibilities.

    • Examples: Developing a data pipeline for real-time analytics, building a recommendation system for an e-comme

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
No response

I applied via Walk-in and was interviewed in May 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. What is indexing in SQL?
  • Ans. 

    Indexing in SQL is a technique used to improve the performance of queries by creating a data structure that allows for faster retrieval of data.

    • Indexes are created on columns in a database table to speed up the retrieval of data.

    • They work similar to the index in a book, allowing the database to quickly find the rows that match a certain condition.

    • Indexes can be created using a single column or a combination of columns.

    • ...

  • Answered by AI
  • Q2. Lift capacity and passenger sql query
  • Q3. What is your experience in Pyspark , python
  • Ans. 

    I have extensive experience in using Pyspark and Python for data engineering tasks.

    • I have worked on various projects involving data processing, transformation, and analysis using Pyspark and Python.

    • I am proficient in writing efficient and optimized code in Pyspark for big data processing.

    • I have experience in handling large datasets and implementing complex data pipelines using Pyspark and Python.

  • Answered by AI
  • Q4. Tell me about architecture of the project that you are working on

Skills evaluated in this interview

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Newspaper Ad and was interviewed in May 2024. There were 3 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Sql queries, python program and my clg background
  • Q2. Star pattern, codding and sql question oral
Round 2 - One-on-one 

(2 Questions)

  • Q1. Joins , sub queries
  • Q2. Trigger, group by
Round 3 - Coding Test 

Programing questiion star pattern

Interview Preparation Tips

Interview preparation tips for other job seekers - not good
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Explain Differnece between ETL AND ELT?
  • Ans. 

    ETL is Extract, Transform, Load where data is extracted, transformed, and loaded in that order. ELT is Extract, Load, Transform where data is extracted, loaded, and then transformed.

    • ETL: Data is extracted from the source, transformed in a separate system, and then loaded into the target system.

    • ELT: Data is extracted from the source, loaded into the target system, and then transformed within the target system.

    • ETL is sui...

  • Answered by AI
  • Q2. Explain the differnece between the difference?
  • Ans. 

    The difference between the difference is the result of subtracting one value from another.

    • Difference is the result of subtracting two values.

    • The difference between two values can be positive, negative, or zero.

    • For example, the difference between 10 and 5 is 5.

  • Answered by AI

Skills evaluated in this interview

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

(2 Questions)

  • Q1. Calculate repeating element in list
  • Ans. 

    Find the repeating element in a list

    • Iterate through the list and keep track of elements seen so far

    • Use a hash set to efficiently check for duplicates

    • Return the first element that is already in the set

  • Answered by AI
  • Q2. Calculate maximum salary in SQL
  • Ans. 

    Use the MAX() function in SQL to calculate the maximum salary.

    • Use the MAX() function along with the column name of the salary field.

    • Example: SELECT MAX(salary) FROM employees;

    • Ensure the correct table and column names are used in the query.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I joined Celebal Technology as Intern, The interviewer asked python and SQL easy questions.
1. Calculate maximum salary
2. Given two tables and what will be the output after the inner join
3. Calculate repeating number in a list in python.
4. Class object

Skills evaluated in this interview

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

I applied via Referral and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. SQL basic questions, Difference between types of join, Aggregate function, Triggers and cursors
Round 2 - HR 

(1 Question)

  • Q1. Salary discussion with roles and responsiblity

Interview Preparation Tips

Interview preparation tips for other job seekers - Clear the concepts of SQL and what you mentioned in CV should match
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G2.com Interview FAQs

How many rounds are there in G2.com Data Engineer interview?
G2.com interview process usually has 2 rounds. The most common rounds in the G2.com interview process are Assignment and Coding Test.
How to prepare for G2.com 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 G2.com. The most common topics and skills that interviewers at G2.com expect are Debugging, Open Source, Python, Agile and Automation.

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G2.com Data Engineer Interview Process

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Interview experience

4
  
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