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Discover Dollar Data Scientist Intern Interview Questions, Process, and Tips

Updated 11 Oct 2024

Discover Dollar Data Scientist Intern Interview Experiences

1 interview found

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

I applied via Cuvette and was interviewed before Oct 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

Multiple Choice Questions related with General Aptitude (Clock, Data Interpretation, Time and Distance, Non-verbal Reasoning), Statistics (probability), Programming (loops, syntax), Fundamentals of Machine Learning, Basics of DBMS and SQL

Round 2 - Coding Test 

3 programming questions.
Easy to Medium of LeetCode.
Related with string manipulation, sliding window and one medium question on graph.
Time duration: 2hrs

Round 3 - Technical 

(5 Questions)

  • Q1. Can you introduce yourself?
  • Ans. 

    I am a data science enthusiast with a strong background in statistics and machine learning.

    • Completed a Bachelor's degree in Statistics

    • Proficient in programming languages like Python and R

    • Experience with data visualization tools such as Tableau

    • Completed projects involving predictive modeling and data analysis

  • Answered by AI
  • Q2. What is convolution operation?
  • Ans. 

    Convolution operation is a mathematical operation that combines two functions to produce a third function.

    • Convolution involves sliding one function over another and multiplying the overlapping values at each position.

    • It is commonly used in image processing and signal processing to extract features.

    • In deep learning, convolutional neural networks use convolution operations to learn spatial hierarchies of features.

  • Answered by AI
  • Q3. Explain project which you have mentioned in resume?
  • Ans. 

    Developed a machine learning model to predict customer churn for a telecom company.

    • Used Python and scikit-learn library for data preprocessing and model building

    • Performed feature engineering to create new variables for better prediction

    • Evaluated model performance using metrics like accuracy, precision, recall

    • Implemented the model in a production environment for real-time predictions

  • Answered by AI
  • Q4. Questions from project such as what is data size? How many classes are there for classification project? Why you have used this specific machine learning algorithm to solve this problem? Why this performan...
  • Q5. Easy level Leetcode problem to be implemented in an online editor along with explanation
  • Ans. 

    Implement a function to find the maximum product of two integers in an array.

    • Iterate through the array and keep track of the two largest and two smallest integers.

    • Calculate the products of the largest and smallest integers and return the maximum product.

  • Answered by AI
Round 4 - Technical 

(6 Questions)

  • Q1. Please, introduce yourself?
  • Ans. 

    I am a data science enthusiast with a strong background in statistics and machine learning.

    • Background in statistics and machine learning

    • Passionate about data science

    • Experience with data analysis tools like Python and R

  • Answered by AI
  • Q2. What do you know about our company?
  • Ans. 

    Company is a leading data analytics firm specializing in providing insights for businesses.

    • Specializes in data analytics for businesses

    • Provides insights to help businesses make informed decisions

    • Known for innovative solutions in the field of data science

  • Answered by AI
  • Q3. Why you want to join our company?
  • Ans. 

    I am impressed by your innovative projects and collaborative work culture.

    • I admire your company's commitment to using data science for social good.

    • I am excited about the opportunity to work with cutting-edge technology and talented professionals.

    • Your company's reputation for fostering growth and learning aligns with my career goals.

  • Answered by AI
  • Q4. Question related with conditional probability?
  • Q5. In case deadline is approaching, whether you will compromise with project quality?
  • Ans. 

    No, compromising project quality is not an option even if the deadline is approaching.

    • Quality should never be compromised as it reflects the professionalism and credibility of the work.

    • Instead of compromising quality, it is better to communicate with the team and stakeholders to find alternative solutions.

    • Prioritize tasks, optimize processes, and work efficiently to meet the deadline without sacrificing quality.

    • Seek he...

  • Answered by AI
  • Q6. How you learn new technologies?
  • Ans. 

    I learn new technologies through online courses, tutorials, hands-on projects, and collaborating with peers.

    • Enroll in online courses on platforms like Coursera, Udemy, or edX

    • Follow tutorials on websites like Medium, YouTube, or official documentation

    • Work on hands-on projects to apply new technologies in real-world scenarios

    • Collaborate with peers through hackathons, coding meetups, or online forums

    • Stay updated with indu...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Discover Dollar Data Scientist Intern interview:
  • Mean
  • Median
  • Mode
  • Probability
  • Linear Regression
  • Logistic Regression
  • Convolution
  • Andrew Ng
Interview preparation tips for other job seekers - -Focus more on fundamentals of machine learning. Mathematics behind ML algorithms.
-Why and Why not for each algorithm and performance metric
-Problem Solving Skills upto Medium Level Leetcode will help.
-No need to focus more on graphs
-Be prepared for whatever you have mentioned in your resume

Skills evaluated in this interview

Interview questions from similar companies

Interview Preparation Tips

Round: Test
Experience: The questions were of medium to high difficulty. What set this test apart was the fact that each question had different weightage ranging from 0.5 to 3 marks per question. Time was a major factor. So my strategy was to attempt all the 1 and 1.5 marks questions which constitute the major chunk of the paper in around 40 minutes and spend the remaining 20 minutes for the 2 and 3 mark questions. I did not even bother reading the 0.5 mark questions. The 2 and 3 mark questions were difficult and those will differentiate you from others. 1600 students wrote the test and only 86 got shortlisted for the next round.
Duration: 60 minutes
Total Questions: 40

Round: Technical Interview
Experience: I was asked to write a C program to print the Fibonacci sequence and a basic SQL query. Apart from this I was asked a puzzle and other questions related to my resume. Out of the 86, only 26 students were called for the next round which again was a technical interview.

Round: Technical Interview
Experience: This was similar to the first technical interview. I had to write a C program to print the prime numbers between 1 and 100 and a puzzle was asked again. Apart from this a guesstimate to find the number of cars between 2 places was asked and a scenario based question too was asked. These were followed by resume related questions.

Round: HR Interview
Experience: All the 26 students who attended the second technical round were allowed to attend HR round as well. This was just for 4 - 5 minutes. I was asked about my family background and why I should be hired. My fondest memories from school days were asked too. Finally offer letter was given to 10 students out of the 1600 who wrote the test :P

General Tips: Just keep a calm head and attempt the questions. Ask for time to think if you are not able to answer the questions immediately. Be bold and confident. That is sufficient :)
Skills: Puzzle Solving Capability, Ability To Think, SQL, C Programming
College Name: VIT Vellore

I was interviewed in Mar 2017.

Interview Questionnaire 

1 Question

  • Q1. Views on their recruiting process
  • Ans. 

    I believe the recruiting process is thorough and well-organized.

    • The company uses a combination of resume screening, interviews, and assessments to evaluate candidates.

    • They have a clear timeline for the hiring process and keep candidates informed of their progress.

    • Feedback is provided to candidates after interviews to help them improve for future opportunities.

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience:

I applied via Naukri.com and was interviewed in Sep 2022. 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 Resume tips
Round 2 - Coding Test 

SQL test has been conducted nearer to 12-15 questions.

Round 3 - HR 

(2 Questions)

  • Q1. Normal discussion, about salary negotiation
  • Q2. Asked about my past company experience

Interview Preparation Tips

Interview preparation tips for other job seekers - Best of luck.
They have lots of opportunities.....................

Data Analyst Interview Questions & Answers

C5i user image Poongodi Vijay

posted on 4 Aug 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Self intro and technical questions
Round 2 - Technical 

(1 Question)

  • Q1. Its all about statistical analysis
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Mar 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

60 minutes 60 questions

Round 2 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Why you want to join this company

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Calm and be positive
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Nov 2023. There were 2 interview rounds.

Round 1 - Coding Test 

It was a 3 hour test with 144 questions

Round 2 - HR 

(1 Question)

  • Q1. Why did you select this company?
Interview experience
3
Average
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 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all Resume tips
Round 2 - Aptitude Test 

Multiple sections on cognitive ability, quant and logical reasoning.
1 coding question

Round 3 - Group Discussion 

Easy
50% went to next round

Round 4 - One-on-one 

(3 Questions)

  • Q1. Technical: SQL, DBMS, Basic programming questions- palindrome, fibonacci, discussion on projects and internships
  • Q2. Difference between UNION and UNION ALL
  • Ans. 

    UNION combines and removes duplicates, UNION ALL combines without removing duplicates.

    • UNION merges the results of two or more SELECT statements and removes duplicates.

    • UNION ALL merges the results of two or more SELECT statements without removing duplicates.

    • UNION is slower as it has to remove duplicates, while UNION ALL is faster.

    • Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

    • Example: SELECT column...

  • Answered by AI
  • Q3. Types of SQL commands
  • Ans. 

    SQL commands include SELECT, INSERT, UPDATE, DELETE, CREATE, and DROP.

    • SELECT: retrieves data from a database

    • INSERT: adds new records to a table

    • UPDATE: modifies existing records in a table

    • DELETE: removes records from a table

    • CREATE: creates a new table, view, or index

    • DROP: deletes a table or index

  • Answered by AI
Round 5 - HR 

(1 Question)

  • Q1. Common HR questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on basics

Skills evaluated in this interview

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

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

Round 1 - Coding Test 

Online platform,
SQL coding

Round 2 - Technical 

(1 Question)

  • Q1. In a one-on-one technical round, all they will ask around your resume
Round 3 - HR 

(1 Question)

  • Q1. Basic HR question on salary and personal backgroung

I applied via Referral and was interviewed in Aug 2022. 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 Resume tips
Round 2 - Aptitude Test 

Most questions were based on profit/loss and coding Questions are simple

Round 3 - Group Discussion 

Gave us topic on how education is important in our life

Round 4 - Technical 

(2 Questions)

  • Q1. Most Questions are on sql and machine learning as per my resume
  • Q2. Find the top two logged in people of each state in facebook

Interview Preparation Tips

Topics to prepare for LatentView Analytics Data Analyst interview:
  • SQL
Interview preparation tips for other job seekers - This one is a great opportunity to start your career as data analyst be sure with sql if you mentioned it.
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Discover Dollar Interview FAQs

How many rounds are there in Discover Dollar Data Scientist Intern interview?
Discover Dollar interview process usually has 4 rounds. The most common rounds in the Discover Dollar interview process are Technical, Aptitude Test and Coding Test.
What are the top questions asked in Discover Dollar Data Scientist Intern interview?

Some of the top questions asked at the Discover Dollar Data Scientist Intern interview -

  1. In case deadline is approaching, whether you will compromise with project quali...read more
  2. Easy level Leetcode problem to be implemented in an online editor along with ex...read more
  3. How you learn new technologi...read more

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Discover Dollar Data Scientist Intern Interview Process

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Interview experience

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Excellent
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