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NeenOpal Intelligent Solutions Interview Questions, Process, and Tips

Updated 12 Feb 2025

Top NeenOpal Intelligent Solutions Interview Questions and Answers

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13 interviews found

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 12 Feb 2025

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I was interviewed in Jan 2025.

Round 1 - Aptitude Test 

20 Questions in 20 min

Round 2 - Coding Test 

Q1. To measure exactly 9 minutes using the 4-minute and 7-minute sand timers, follow these steps:

1. Start both the 4-minute and 7-minute timers at the same time.
2. When the 4-minute timer runs out, flip it immediately. At this point, 4 minutes have passed, and there are 3 minutes left on the 7-minute timer.
3. When the 7-minute timer runs out, 3 minutes have passed since you flipped the 4-minute timer, totaling 7 minutes. At this point, the 4-minute timer has been running for 3 minutes (1 minute left).
4. When the 4-minute timer runs out again (after 1 more minute), a total of 8 minutes has passed.
5. Finally, flip the 4-minute timer one last time. Wait for 1 more minute, which will give you a total of 9 minutes.

Q2. The SQL query provided will select all customers who do not have any orders. It retrieves customer IDs from the `Customers` table where the `customer_id` is not present in the `Orders` table.

Q3. The first SQL query retrieves the second oldest customer from the `Customers` table by selecting their `first_name` and `age`, ordering the results by age in descending order, and skipping the oldest customer with an offset of 1.

The second SQL query counts how many orders each customer has placed and selects customers who have placed more than one order, grouping the results by `customer_id` and including their `first_name`.

Data Engineer Interview Questions asked at other Companies

Q1. Optimal Strategy for a Coin Game You are playing a coin game with your friend Ninjax. There are N coins placed in a straight line. Here are the rules of the game: 1. Each coin has a value associated with it. 2. The game involves two players... read more
View answer (1)
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. THey ask about your experience and projects youve worked on create table fact_product ( order_date varchar, order_id varchar, product_id varchar, quantity int, price int ); insert into fact_pr...

Data Engineer Interview Questions asked at other Companies

Q1. Optimal Strategy for a Coin Game You are playing a coin game with your friend Ninjax. There are N coins placed in a straight line. Here are the rules of the game: 1. Each coin has a value associated with it. 2. The game involves two players... read more
View answer (1)

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 13 Aug 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Technical 

(2 Questions)

  • Q1. List vs tuple difference
  • Ans. 

    List is mutable, tuple is immutable in Python.

    • List can be modified after creation, tuple cannot be modified

    • List uses square brackets [], tuple uses parentheses ()

    • List is used for collections of items that may need to be changed, tuple is used for fixed collections

  • Answered by AI
  • Q2. How to removes duplicates in spark
  • Ans. 

    Use dropDuplicates() function in Spark to remove duplicates from a DataFrame.

    • Use dropDuplicates() function on the DataFrame to remove duplicates based on all columns

    • Specify columns to check for duplicates by passing them as arguments to dropDuplicates() function

    • Example: df.dropDuplicates() or df.dropDuplicates(['col1', 'col2'])

  • Answered by AI

Skills evaluated in this interview

Data Engineer Interview Questions asked at other Companies

Q1. Optimal Strategy for a Coin Game You are playing a coin game with your friend Ninjax. There are N coins placed in a straight line. Here are the rules of the game: 1. Each coin has a value associated with it. 2. The game involves two players... read more
View answer (1)

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 5 Mar 2024

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Feb 2024. There were 2 interview rounds.

Round 1 - Assignment 

Excel, Python, SQL and Power BI

Round 2 - Technical 

(3 Questions)

  • Q1. Remove duplicates from an array without using any functions
  • Ans. 

    Remove duplicates from an array without using any functions

    • Create an empty array to store unique values

    • Loop through the original array and check if the value is already in the unique array before adding it

    • Use nested loops to compare each element with all other elements in the array

  • Answered by AI
  • Q2. Create a single dimensional array from a multi dimensional array
  • Ans. 

    To create a single dimensional array from a multi dimensional array, use the flatten method in Python.

    • Use the flatten method in Python to convert a multi dimensional array into a single dimensional array.

    • Example: multi_array = [[1, 2], [3, 4], [5, 6]]

    • single_array = [item for sublist in multi_array for item in sublist]

  • Answered by AI
  • Q3. You have a 7 minutes hourglass and a 4 minutes hourglass, now figure out a way to calculate 9 minutes

Skills evaluated in this interview

Data Analyst Interview Questions asked at other Companies

Q1. Suppose there is a room in the office and X people enter room throughout the day, Y people leave throughout the day [continuously people are entering the room, some are staying there, and rest are going out] .. so tell me the code to calcul... read more
View answer (11)

NeenOpal Intelligent Solutions interview questions for popular designations

 Data Scientist

 (5)

 Data Analyst

 (3)

 Data Engineer

 (3)

 Data Analyst Intern

 (1)

 Senior Data Analyst

 (1)

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Jul 2023. There were 3 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 - Coding Test 

Two tasks, one python and one SQL based

Round 3 - Technical 

(4 Questions)

  • Q1. Q1.) Given sample data in text, read it in python Solution: Take the text to notepad, save it as CSV and then read it in python Check the number of null values Check the number of unique values Make a new...
  • Ans. 

    Read sample data in text, check for null and unique values, create new column by multiplying two features

    • Save text data as CSV and read in Python using pandas

    • Use isnull() to check for null values

    • Use nunique() to check for unique values

    • Create a new column by multiplying two existing columns

    • Add the new column to the existing dataframe

  • Answered by AI
  • Q2. Q3.) Query the minimum & maximum marks from the student table. Will the output be in the form of columns or rows. What to do in order to get the output in rows?
  • Q3. Q2.) Difference between list and tuple? a = [1,2,3,4,5,6,7,8,9] print(a[-1:-5]) Without running this code in compiler, tell the output
  • Ans. 

    The code will output an empty list as a result of slicing from -1 to -5 in the list 'a'.

    • Slicing in Python allows you to access a subset of elements in a list or tuple.

    • When slicing, the start index is inclusive and the end index is exclusive.

    • In this case, a[-1:-5] will result in an empty list because the start index -1 is greater than the end index -5.

  • Answered by AI
  • Q4. Q4.) Fibonacci series in python
  • Ans. 

    Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.

    • Use a loop or recursion to generate Fibonacci series in Python.

    • Start with 0 and 1 as the first two numbers in the series.

    • Add the previous two numbers to get the next number in the series.

  • Answered by AI

Interview Preparation Tips

Topics to prepare for NeenOpal Intelligent Solutions Data Scientist interview:
  • Python
  • MySQL
  • Puzzles
  • Loogical reasoning
Interview preparation tips for other job seekers - Half hour technical interview

Skills evaluated in this interview

Data Scientist Interview Questions asked at other Companies

Q1. for a data with 1000 samples and 700 dimensions, how would you find a line that best fits the data, to be able to extrapolate? this is not a supervised ML problem, there's no target. and how would you do it, if you want to treat this as a s... read more
View answer (5)
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Sql related Questions
  • Q2. Dax related Questions

Senior Data Analyst Interview Questions asked at other Companies

Q1. What is the difference between Least Squares Method and the maximum likelihood
View answer (1)
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Assignment 

SQL, Pandas, Power BI

Round 2 - Technical 

(1 Question)

  • Q1. SQL and Pandas questions

Data Scientist Interview Questions asked at other Companies

Q1. for a data with 1000 samples and 700 dimensions, how would you find a line that best fits the data, to be able to extrapolate? this is not a supervised ML problem, there's no target. and how would you do it, if you want to treat this as a s... read more
View answer (5)

Data Analyst Interview Questions & Answers

user image tejesh goteti

posted on 25 Jun 2024

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Questions on Sand timer

Data Analyst Interview Questions asked at other Companies

Q1. Suppose there is a room in the office and X people enter room throughout the day, Y people leave throughout the day [continuously people are entering the room, some are staying there, and rest are going out] .. so tell me the code to calcul... read more
View answer (11)

Data Analyst Interview Questions & Answers

user image Anonymous

posted on 23 Mar 2024

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

It was based upon Tableau

Round 2 - One-on-one 

(1 Question)

  • Q1. They asked some python based question

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared for python and advanced sql

Data Analyst Interview Questions asked at other Companies

Q1. Suppose there is a room in the office and X people enter room throughout the day, Y people leave throughout the day [continuously people are entering the room, some are staying there, and rest are going out] .. so tell me the code to calcul... read more
View answer (11)
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Not Selected

I applied via Referral and was interviewed in May 2023. There were 4 interview rounds.

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 - Assignment 

The assignment consisted of three sections where the third section is optional and it only need some basic knowledge of SQL and python

Round 3 - Technical 

(1 Question)

  • Q1. Here the HR will ask you some questions related to python, SQL, and aptitude (just some basic questions)
Round 4 - Behavioral 

(1 Question)

  • Q1. More of a discussion of your previous projects

Interview Preparation Tips

Interview preparation tips for other job seekers - My interviewer wanted the answers to be in his way which is not possible because everyone will have a different approach to different problems. I had a pathetic experience with the interviewer!

Data Scientist Interview Questions asked at other Companies

Q1. for a data with 1000 samples and 700 dimensions, how would you find a line that best fits the data, to be able to extrapolate? this is not a supervised ML problem, there's no target. and how would you do it, if you want to treat this as a s... read more
View answer (5)

NeenOpal Intelligent Solutions Interview FAQs

How many rounds are there in NeenOpal Intelligent Solutions interview?
NeenOpal Intelligent Solutions interview process usually has 2 rounds. The most common rounds in the NeenOpal Intelligent Solutions interview process are Technical, Assignment and Resume Shortlist.
How to prepare for NeenOpal Intelligent Solutions 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 NeenOpal Intelligent Solutions . The most common topics and skills that interviewers at NeenOpal Intelligent Solutions expect are Python, SQL, Data Science, Salesforce and Apex.
What are the top questions asked in NeenOpal Intelligent Solutions interview?

Some of the top questions asked at the NeenOpal Intelligent Solutions interview -

  1. Q2.) Difference between list and tuple? a = [1,2,3,4,5,6,7,8,9] print(a[-1:-5])...read more
  2. Q1.) Given sample data in text, read it in python Solution: Take the text to no...read more
  3. You have a 7 minutes hourglass and a 4 minutes hourglass, now figure out a way ...read more
How long is the NeenOpal Intelligent Solutions interview process?

The duration of NeenOpal Intelligent Solutions interview process can vary, but typically it takes about less than 2 weeks to complete.

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NeenOpal Intelligent Solutions Interview Process

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NeenOpal Intelligent Solutions Reviews and Ratings

based on 16 reviews

3.6/5

Rating in categories

3.4

Skill development

3.4

Work-life balance

3.2

Salary

3.4

Job security

3.4

Company culture

3.0

Promotions

3.4

Work satisfaction

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