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HCLTech Data Analyst Interview Questions and Answers

Updated 20 Jun 2025

HCLTech Data Analyst Interview Experiences

23 interviews found

Data Analyst Interview Questions & Answers

user image shrishti patel

posted on 9 Dec 2024

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

Data Analyst Interview Questions & Answers

user image chakri ck

posted on 10 Jan 2025

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

(2 Questions)

  • Q1. About joins and sql and python
  • Q2. About data analysis , model building

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 11 Nov 2024

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

I applied via Campus Placement

Round 1 - Aptitude Test 

29 questions with normal level difficulty

Round 2 - Technical 

(3 Questions)

  • Q1. Tell me about your self
  • Q2. What is a dax
  • Q3. Explain your project

Data Analyst Interview Questions & Answers

user image uday kuresi

posted on 3 Oct 2024

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

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

Round 1 - One-on-one 

(2 Questions)

  • Q1. How to handle incremental refresh
  • Ans. 

    Incremental refresh is a process of updating only new or changed data in a dataset.

    • Identify the key columns that can be used to track changes in the data

    • Use date or timestamp columns to filter out new or updated records

    • Implement a process to regularly check for new data and update the dataset accordingly

  • Answered by AI
  • Q2. Difference between inner join and left join

Skills evaluated in this interview

Data Analyst Interview Questions & Answers

user image Ujjwal Sinha

posted on 12 Nov 2024

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

(2 Questions)

  • Q1. Difference between a Data Warehouse and Data lake?
  • Ans. 

    Data warehouse is structured and used for reporting and analysis, while data lake is unstructured and used for exploration and experimentation.

    • Data warehouse stores structured data for easy access and analysis.

    • Data lake stores unstructured and raw data for exploration and experimentation.

    • Data warehouse is typically used for reporting and business intelligence.

    • Data lake is used for data science and machine learning proj...

  • Answered by AI
  • Q2. Difference between Having and Where clause in SQL

Skills evaluated in this interview

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 20 Jun 2025

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

I appeared for an interview in May 2025, where I was asked the following questions.

  • Q1. What is data analyst?
  • Ans. 

    A data analyst interprets data to help organizations make informed decisions through analysis and visualization.

    • Collects and cleans data from various sources, e.g., databases, spreadsheets.

    • Analyzes data trends and patterns, such as sales growth over time.

    • Creates visualizations like charts and graphs to present findings, e.g., using Tableau or Power BI.

    • Generates reports to communicate insights to stakeholders, aiding in...

  • Answered by AI
  • Q2. Why choose data analyst?
  • Ans. 

    I chose data analysis to leverage data-driven insights for informed decision-making and impactful problem-solving.

    • Passion for uncovering patterns: I enjoy analyzing data to find trends, like identifying customer preferences in retail.

    • Impactful decision-making: Data analysis helps organizations make informed choices, such as optimizing supply chain logistics.

    • Diverse applications: Data analysis is applicable in various f...

  • Answered by AI
  • Q3. Use for future data analyst?
  • Ans. 

    Future data analysts should focus on continuous learning, technical skills, and domain knowledge to excel in their careers.

    • Stay updated with the latest data analysis tools like Python, R, and SQL.

    • Develop strong statistical skills to interpret data accurately; for example, understanding p-values.

    • Gain domain knowledge relevant to your industry, such as finance or healthcare, to provide better insights.

    • Practice data visua...

  • Answered by AI

Data Analyst Interview Questions & Answers

user image sunny 123

posted on 22 Sep 2024

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Technical 

(2 Questions)

  • Q1. He asked about vlookup
  • Q2. He asked about pivote tabla

Interview Preparation Tips

Interview preparation tips for other job seekers - i have attended the interview in hcl tech hyderabad the which they have only sent the invatation for data analyst on 21-09-2024 and in the interview process i have answered all the technical quations correctly and the interview person rejected me due to hobbies and the hobbies i have said is doing techinical things like improving my skills how cural it was by playing with job seekers life

Data Analyst Interview Questions & Answers

user image Bhagirath Saini

posted on 2 Jun 2024

Interview experience
3
Average
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Not Selected

I applied via Walk-in and was interviewed in May 2024. There were 3 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. SQL normal question and cloud question
  • Q2. No of employee with age more that 50
  • Q3. Difference between adsl and blob storage
  • Ans. 

    ADSL is a type of internet connection technology, while Blob storage is a type of cloud storage service.

    • ADSL (Asymmetric Digital Subscriber Line) is a type of broadband connection that uses existing telephone lines to transmit data.

    • Blob storage is a type of cloud storage service provided by platforms like Azure, AWS, and Google Cloud.

    • ADSL typically has slower upload speeds compared to download speeds, while Blob storag...

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. Normal sql question and cloud question
Round 3 - HR 

(1 Question)

  • Q1. Salary expectation

Skills evaluated in this interview

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 19 Jan 2025

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Coding Test 

Pandas, Jumpy, and Matplotlib have been revitalized, while Power BI has contributed to the valuation of businesses.

Interview Preparation Tips

Topics to prepare for HCLTech Data Analyst interview:
  • powerBI
  • SQL
  • Python
Interview preparation tips for other job seekers - I will expect data analysis with AI (tools)as a presentation of Gamma (AI).
Expert .
( SQL ,Excel ,python, power BI )
AI tools>
Gamma.
perplexity,
Business problems solution

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 6 Dec 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Data analysis questions 

(2 Questions)

  • Q1. Calculate avg value and standard deviation from given data
  • Ans. 

    Calculate avg value and standard deviation from given data

    • Calculate the average value by summing all data points and dividing by the total number of data points

    • Calculate the standard deviation by finding the square root of the average of the squared differences between each data point and the mean

    • Example: Data points - 5, 7, 9, 11. Average = (5+7+9+11)/4 = 8. Standard deviation = sqrt(((5-8)^2 + (7-8)^2 + (9-8)^2 + (11...

  • Answered by AI
  • Q2. From given graph answer below questions

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HCLTech Interview FAQs

How many rounds are there in HCLTech Data Analyst interview?
HCLTech interview process usually has 1-2 rounds. The most common rounds in the HCLTech interview process are Technical, One-on-one Round and HR.
How to prepare for HCLTech Data Analyst 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 HCLTech. The most common topics and skills that interviewers at HCLTech expect are Data Analysis, Data Analytics, Excel, SQL and Advanced Excel.
What are the top questions asked in HCLTech Data Analyst interview?

Some of the top questions asked at the HCLTech Data Analyst interview -

  1. What is unwanted safety effec...read more
  2. What is data type...read more
  3. Difference between Having and Where clause in ...read more
How long is the HCLTech Data Analyst interview process?

The duration of HCLTech Data Analyst interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

3.7/5

based on 27 interview experiences

Difficulty level

Easy 55%
Moderate 36%
Hard 9%

Duration

Less than 2 weeks 82%
2-4 weeks 18%
View more
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HCLTech Data Analyst Salary
based on 988 salaries
₹1.6 L/yr - ₹10 L/yr
24% less than the average Data Analyst Salary in India
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3.3/5

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3.4

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2.7

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Promotions

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