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Qubole Interview Questions and Answers

Updated 19 Nov 2020

Qubole Interview Experiences

2 interviews found

I applied via Company Website and was interviewed before Nov 2019. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Irrelevant now. Qubole was fantastic to work but it is recently acquired by Idera. Just go to glassdoor and see the reviews of idera. I have nothing else to say.

Interview Preparation Tips

Interview preparation tips for other job seekers - Do not join this company now at any cost.
After acquisition, things are going downhill and one should not be surprised to see Qubole as a product vanishing from the market in next few months.

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Q1. Admin Questions :- What is Relationships what are types of relationships
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Interview Questions & Answers

user image Anonymous

posted on 21 May 2015

Interview Preparation Tips

Round: Test
Experience: Input:
Was csv files of fb users data.Questions for above Input:
1. Parse the data and build a graph.
2. Check if two users are friends.
3. Check if two users have a friend in common.
4. Find total mutual friends for a pair of users.
5. Find potential friends based on mutual friend count.
6. How will you do this for large datasets ?OO code was required which had a good design and was well commented.
Total Questions: 6

College Name: NA

Jobs at Qubole

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Analyst Interview Questions & Answers

Snowflake user image Rashmi Mestry

posted on 2 Jul 2024

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

(1 Question)

  • Q1. What are strengths
  • Ans. 

    My strengths include strong analytical skills, attention to detail, and ability to work well under pressure.

    • Strong analytical skills - able to analyze data and draw meaningful insights

    • Attention to detail - meticulous in reviewing work for accuracy

    • Ability to work well under pressure - can stay focused and perform effectively in high-stress situations

  • Answered by AI
Interview experience
4
Good
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Not Selected

I applied via Job Portal and was interviewed in Sep 2024. There were 2 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. Resume questions
Round 2 - Technical 

(1 Question)

  • Q1. 4-5 SQL coding questions
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in May 2024. There was 1 interview round.

Round 1 - Coding Test 

60 minutes, CIDR network masks

I was interviewed before Sep 2020.

Round 1 - Coding Test 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Medium

4 coding questions on hackerrank.

  • Q1. 

    Dice Throws Problem Statement

    You are given D dice, each having F faces numbered from 1 to F. The task is to determine the number of possible ways to roll all the dice such that the sum of the face-up num...

  • Ans. 

    The task is to determine the number of possible ways to roll all the dice such that the sum of the face-up numbers equals the given 'target' sum.

    • Use dynamic programming to solve the problem efficiently.

    • Create a 2D array to store the number of ways to achieve each sum with the given number of dice.

    • Iterate through the dice and faces to calculate the number of ways to reach each sum.

    • Return the result modulo 10^9 + 7.

    • Optim...

  • Answered by AI
  • Q2. 

    Stack using Two Queues Problem Statement

    Develop a Stack Data Structure to store integer values using two Queues internally.

    Your stack implementation should provide these public functions:

    Explanation:

    ...
  • Ans. 

    Implement a stack using two queues to store integer values with specified functions.

    • Use two queues to simulate stack operations efficiently.

    • Maintain the top element in one of the queues for easy access.

    • Ensure proper handling of edge cases like empty stack.

    • Example: Push elements 5, 10, 15; Pop elements; Check top element.

    • Example: Check if stack is empty; Get stack size.

  • Answered by AI
  • Q3. 

    Maximum Subarray Sum Problem Statement

    Given an array 'ARR' of integers with length 'N', the task is to determine the sum of the subarray (including an empty subarray) that yields the maximum sum among al...

  • Ans. 

    Find the maximum sum of a subarray in an array of integers.

    • Iterate through the array and keep track of the maximum sum subarray ending at each index.

    • Use Kadane's algorithm to efficiently find the maximum subarray sum.

    • Consider the case where all elements are negative to handle edge cases.

    • Example: For input [1, -2, 3, -1, 2], the maximum subarray sum is 4.

  • Answered by AI
Round 2 - Video Call 

Round duration - 60 minutes
Round difficulty - Medium

My 1st technical round began with a small introduction and a discussion on my projects. After that, my complete interview revolved around Object-oriented principles and 1 basic coding question. The interviewer asked all the pillars of Object-oriented along with use cases and where have I implemented them in my projects.

Round 3 - Video Call 

(1 Question)

Round duration - 45 minutes
Round difficulty - Easy

In my 2nd technical round, the interviewer began with the complete discussion of my projects. He asked me everything about them like which technologies I have used, why I have used them, what are the alternatives, what are the real-life applications of these projects. After this, He asked questions on Computer Networks, Operating system, Database Management system and at the end, some of the SQL queries. SQL queries were quite easy, I found one of the queries tricky and harder as compared to other i.e print nth largest salary of the employees. The interviewer also asked me why I was not able to code one of the questions in the coding round. I explained the complete approach of that question and he was quite satisfied. This technical round was of 1 hour long.

  • Q1. Print the nth largest salary from a given list of salaries.
  • Ans. 

    Find the nth largest salary from a list of salaries.

    • Sort the list of salaries in descending order.

    • Remove duplicates from the sorted list.

    • Return the salary at index n-1 from the sorted list.

  • Answered by AI
Round 4 - HR 

(1 Question)

Round duration - 35 minutes
Round difficulty - Easy

There were two panellists in this round and they began with a small introduction. One of them asked me about my capstone project which was based on object recognition task and deep learning. He just told me to explain deep learning in complete detail and how can it be used on my college campus. Then, He asked me what technologies are being used and how I trained my model as the model was quite heavy and computationally intensive. Then, they asked me how I cope up with my team members in the pandemic situation and how I managed to interact with them.

  • Q1. What are the basic applications of deep learning, and how can I implement it in my college?
  • Ans. 

    Deep learning has applications in image and speech recognition, natural language processing, autonomous vehicles, etc.

    • Image recognition - identifying objects in images, used in self-driving cars, medical imaging, etc.

    • Speech recognition - converting spoken language into text, used in virtual assistants like Siri, Alexa, etc.

    • Natural language processing - understanding and generating human language, used in chatbots, lang...

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI applied for the job as SDE - 1 in BangaloreEligibility criteriaAbove 8 CGPACloudera interview preparation:Topics to prepare for the interview - Object-oriented programming in C++, Data Structure and algorithms, Computer Networks, Operating Systems, Database Management SystemsTime required to prepare for the interview - 5 monthsInterview preparation tips for other job seekers

Tip 1 : Practice at least 600 questions from leetcode.
Tip 2 : Make sure you participate in every long challenge of CodeChef.
Tip 3 : Focus more on your projects.

Application resume tips for other job seekers

Tip 1 : Do not put false things on a resume.
Tip 2 : Have some projects on a resume.

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Aug 2023. There were 3 interview rounds.

Round 1 - Coding Test 

4 questions, 1 easy, 2 medium, 1 hard.
based on stack, DP and String.

Round 2 - Technical 

(3 Questions)

  • Q1. Based on OOPS 4 pillars.
  • Q2. Based on spark and operating system as mentioned in my resume.
  • Q3. Mostly on basic topics like DBMS, OOPS, OS, DSA (invert a binary tree, a medium string question).
Round 3 - Technical 

(2 Questions)

  • Q1. Explain the project done in internship.
  • Q2. Explain spark architecture and related questions on architecture.

Interview Preparation Tips

Interview preparation tips for other job seekers - focus on basics and projects in resume.
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Coding test was simple with 3 questions, 1 with SQL and other 2 with dsa questions

Round 2 - Technical 

(2 Questions)

  • Q1. Resume based questions
  • Q2. Resume based question
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Behavioral 

(1 Question)

  • Q1. What would you use to build a web app?
  • Ans. 

    To build a web app, I would use a combination of front-end technologies like HTML, CSS, and JavaScript, along with back-end technologies like Node.js, Express, and MongoDB.

    • Front-end technologies: HTML, CSS, JavaScript

    • Back-end technologies: Node.js, Express, MongoDB

    • Frameworks: React, Angular, Vue.js

    • Database: MySQL, PostgreSQL, MongoDB

    • Version control: Git

    • Deployment: AWS, Heroku, Netlify

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Hiring manager seemed distracted.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Nov 2024. There were 5 interview rounds.

Round 1 - Coding Test 

Coding - 1 hr, Graph

Round 2 - Coding Test 

Coding - 1hr, Algo + Implementation, Bitwise, Prefix search, Intervals.

Round 3 - Coding Test 

Coding - 1 hr, Implementation, Testing.

Round 4 - Behavioral 

(2 Questions)

  • Q1. Details around projects.
  • Q2. Standard Behavioural Questions.
Round 5 - Coding Test 

Coding - 1hr, Systems Design with coding, Multithreading.

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on multithreading, rest of the things you'd already know if you're prepared for any standard coding interview.
The interview was not difficult as such in my opinion, I just messed up last round.

Qubole Interview FAQs

How to prepare for Qubole 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 Qubole. The most common topics and skills that interviewers at Qubole expect are Big Data, Python, Java, Machine Learning and Hadoop.

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Qubole Reviews and Ratings

based on 7 reviews

4.5/5

Rating in categories

4.1

Skill development

4.8

Work-life balance

4.5

Salary

3.6

Job security

4.9

Company culture

4.1

Promotions

4.9

Work satisfaction

Explore 7 Reviews and Ratings
Product Architect - Testmo

Kolkata,

Mumbai

+5

4-9 Yrs

Not Disclosed

Partner Marketing Specialist

Remote

3-8 Yrs

Not Disclosed

Lead Product Manager - Ranorex

Remote

7-12 Yrs

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