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GOLFLAN TECHNOLOGY SOLUTIONS Data Analyst Interview Questions and Answers

Updated 6 May 2021

GOLFLAN TECHNOLOGY SOLUTIONS Data Analyst Interview Experiences

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Data Analyst Interview Questions & Answers

user image Anonymous

posted on 6 May 2021

I applied via campus placement at Motilal Nehru Institute National Institute of Technology (NIT), Allahabad and was interviewed in Apr 2021. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. Different operations using NumPy and pandas
  • Ans. 

    NumPy and pandas are powerful libraries for data analysis and manipulation. They offer various operations for different tasks.

    • NumPy is used for numerical operations on arrays and matrices

    • Pandas is used for data manipulation and analysis

    • NumPy offers functions for mathematical operations like addition, subtraction, multiplication, etc.

    • Pandas offers functions for data cleaning, filtering, merging, and grouping

    • NumPy arrays...

  • Answered by AI
  • Q2. Briefly explain the projects
  • Q3. How do convert your data in jupyter notebook to excel
  • Ans. 

    To convert data in Jupyter Notebook to Excel, use the pandas library to create a DataFrame and then export it as an Excel file.

    • Import the pandas library

    • Create a DataFrame using your data

    • Use the to_excel() method to export the DataFrame as an Excel file

    • Specify the file name and location for the Excel file

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - make sure what you write in your resume and prepare more questions on NumPy and pandas

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. Was Given two small tables and was asked the total no of rows returned for each kind of join.
  • Q2. In Tableau if the underlining table columns keep on changing than what can be done so that it wont affect on the view level.
  • Ans. 

    Create calculated fields in Tableau to dynamically adjust to changing table columns.

    • Use calculated fields to reference specific columns by name instead of position.

    • Utilize parameters to allow users to select which columns to display.

    • Consider using custom SQL queries to dynamically adjust to changing table structure.

  • Answered by AI
  • Q3. Row level security
  • Q4. Tell me about your project
  • Ans. 

    Developed a predictive model to forecast customer churn for a telecommunications company.

    • Utilized machine learning algorithms such as logistic regression and random forest

    • Performed data preprocessing and feature engineering to improve model performance

    • Collaborated with business stakeholders to understand key drivers of churn

    • Achieved 85% accuracy in predicting customer churn

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on SQL mainly on joins and be prepared to explain your project in detail.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. Can you provide an overview of your background, including your past experiences and daily activities, as well as the tools you use in your routine?
  • Ans. 

    I have a background in data analysis with experience in using tools like Python, SQL, and Tableau.

    • I have a degree in Statistics and have worked as a Data Analyst for 3 years.

    • My daily activities include cleaning and analyzing data, creating visualizations, and presenting insights to stakeholders.

    • I use Python for data manipulation and analysis, SQL for querying databases, and Tableau for creating interactive dashboards.

    • I...

  • Answered by AI
  • Q2. What are the concepts of advanced Excel and Power BI projects, and how are they utilized within a company or for clients?
  • Ans. 

    Advanced Excel and Power BI are tools used for data analysis and visualization in companies and for clients.

    • Advanced Excel allows for complex data manipulation, analysis, and visualization using features like pivot tables, macros, and VBA programming.

    • Power BI is a business analytics tool that provides interactive visualizations and business intelligence capabilities, connecting to various data sources.

    • These tools are u...

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. Can you explain your project experience related to Advanced Excel and Power BI?
  • Ans. 

    I have extensive experience in using Advanced Excel and Power BI for data analysis projects.

    • Created complex formulas and macros in Excel to automate data processing tasks

    • Designed interactive dashboards in Power BI to visualize and analyze data trends

    • Integrated data from multiple sources into Power BI for comprehensive analysis

    • Used Power Query and Power Pivot in Excel to manipulate and analyze large datasets

    • Provided dat...

  • Answered by AI
  • Q2. What are the concepts of credit and operations, particularly in relation to Know Your Customer (KYC) procedures and the privacy of client data?
  • Ans. 

    Credit and operations concepts in relation to KYC procedures and client data privacy.

    • Credit refers to the extension of money or resources to a client based on their financial history and ability to repay.

    • Operations involve the day-to-day processes and procedures within a financial institution to ensure smooth functioning.

    • KYC procedures are used to verify the identity of clients to prevent fraud and money laundering.

    • Pri...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - If your resume is shortlisted, then there is a higher chance that you will be selected.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
4-6 weeks
Result
No response

I applied via AmbitionBox and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. I have finished Btech in Cse AI&ML taken datascience course looking for job
Round 2 - Case Study 

NLP is my favorite subject. Is relatated medical and sign language. I have done reseach with mechien learning and AI TOOLS used for problem solving approach.

Round 3 - Group Discussion 

A group discussion was conducted on data-based management regarding Mr. Adani's food industry products in the state of Gujarat and their exports to other countries, utilizing data analytics.

Interview Preparation Tips

Interview preparation tips for other job seekers - I am willing to work hard and invest ample time in the company's development, demonstrating effective time management while sincerely engaging in daily scheduled project-based research and maintaining team spirit.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Sql python bigdata hadoop hive spark

Round 2 - Coding Test 

1 hour simple coding python sql

Round 3 - One-on-one 

(5 Questions)

  • Q1. Advantages of sql
  • Ans. 

    SQL allows for efficient data retrieval, manipulation, and analysis in relational databases.

    • SQL is widely used in querying databases to retrieve specific data.

    • It allows for data manipulation, such as adding, updating, and deleting records.

    • SQL can perform complex data analysis tasks, such as aggregations and joins.

    • It provides a standardized language for interacting with relational databases.

    • SQL is essential for generati...

  • Answered by AI
  • Q2. Advantages of python
  • Ans. 

    Python is a versatile programming language known for its simplicity, readability, and vast library support.

    • Easy to learn and use, making it ideal for beginners and experienced programmers alike

    • Extensive library support for data analysis, machine learning, web development, and more

    • Strong community support with active forums and resources for problem-solving

    • Cross-platform compatibility allows for seamless integration wit...

  • Answered by AI
  • Q3. Spark and its benefits
  • Ans. 

    Spark is a fast and powerful big data processing framework that offers benefits like speed, ease of use, and versatility.

    • Spark is known for its speed, as it can process data up to 100 times faster than traditional Hadoop MapReduce.

    • It offers ease of use with high-level APIs in Java, Scala, Python, and SQL, making it accessible to a wide range of users.

    • Spark is versatile, supporting various workloads such as batch proces...

  • Answered by AI
  • Q4. Why to leave the company
  • Q5. Huddles of data engineer
  • Ans. 

    Huddles of data engineers refer to collaborative meetings or discussions among data engineers to share insights, solve problems, and make decisions.

    • Huddles are typically informal and can be scheduled or ad-hoc.

    • They provide a platform for data engineers to brainstorm, troubleshoot, and exchange ideas.

    • Huddles may involve reviewing code, discussing data pipelines, or addressing technical challenges.

    • Effective huddles promo...

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Selected Selected
Round 1 - One-on-one 

(1 Question)

  • Q1. Python and sql related question
Round 2 - One-on-one 

(1 Question)

  • Q1. Pandas numpy visualisation sql
Round 3 - Coding Test 

Alteryx data processing and reporting

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

I applied via campus placement at GLA Institute of Technology and Management, Mathura and was interviewed in Jul 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Normal verbal, technical subject and psudocodes

Round 2 - SVAR 

(1 Question)

  • Q1. Listen and repeat types of questions
Round 3 - HR 

(1 Question)

  • Q1. Basis hr type questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice on essay writing
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Aptitude Test 

Online aptitude test with maths and statistics and data analysis

Round 2 - Technical 

(1 Question)

  • Q1. Joins sql groups python numpy pandas
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Logical,verbal,quants

Round 2 - One-on-one 

(2 Questions)

  • Q1. What is lambda function
  • Q2. What is subquary
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. How to perform Set Actions, LOD's

GOLFLAN TECHNOLOGY SOLUTIONS Interview FAQs

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Some of the top questions asked at the GOLFLAN TECHNOLOGY SOLUTIONS Data Analyst interview -

  1. how do convert your data in jupyter notebook to ex...read more
  2. different operations using NumPy and pan...read more

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