DevTown interview experience Real time questions & tips from candidates to crack your interview

Data Analyst Intern

DevTown
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3 rounds | 6 Coding problems

Interview preparation journey

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Journey
The journey was fantastic. Amidst the shades of the COVID-19 pandemic, I seized an opportunity and eventually got selected for it. I can imagine the state you folks may be in while reading this, but I must confess that 'ONLY FAILURE CAN BE OUR NEXT SUCCESSOR'. Channeling this fact, only those who have experienced profound failure can truly appreciate their subsequent successes in life. I was nearly discouraged from pursuing data science and analytics after my 6th semester until I secured this internship to kickstart my journey. Regardless of which stage of the semester you are currently in, remember that it's now or never. For ShapeAI, now called Devtown, I started from the basics of resume and cover letter building. Once prepared, I focused on gaining conceptual and theoretical knowledge. Finally, I dedicated myself to understanding the subjects related to the course of action.
Application story
So, I applied for this opportunity via the job alert notification. I went through the round of applications and passed the screening process. Next, I was eligible for the written test, which covered data structures and algorithms extensively. There were also a bunch of SQL and logical screening questions. Following that, I had one technical interview and two HR interviews.
Why selected/rejected for the role?
I believe dedication, commitment, and confidence, boosted by knowledge, will take you far, regardless of the successes and failures along the way. Eventually, I was selected for the role and secured a 10-week-long internship in the data science and analytics vertical.
Preparation
Duration: 8-9 months
Topics: MACHINE LEARNING, DESIGN AND COMPUTER ORGANISATIONS, DATA STRUCTURES, LOGICAL AND VERBAL, QUANTARTIFICAL INTELLIGENCE AND DEEP LEARNING
Tip
Tip

Tip 1: Understand the core subjects' knowledge, in terms of conceptual and practical aspects.

Tip 2: Practice use cases and real-life examples that support your understanding.

Tip 3: Code on multiple platforms and showcase your scorecard for them on LinkedIn.

 

 

Application process
Where: Linkedin
Eligibility: No backlogs
Resume Tip
Resume tip

Tip 1 : Plan and study the organization prior to making a resume.
Tip 2 : Understanding your niche is important and putting the right skills and certifications with projects will be a plus!

Interview rounds

01
Round
Easy
Online Coding Interview
Duration100 minutes
Interview date9 Feb 2021
Coding problem3

It was a test window on their platform and had a designed time and set registration time to enter and exit the portal.
Questions from logical reasoning, verbal communication, SQL, Quant were asked followed by the coding round

1. N-th Fibonacci Number

Moderate
40m average time
70% success
0/80
Asked in companies
MathworksAmazonOracle

You are given an integer ‘N’, your task is to find and return the N’th Fibonacci number using matrix exponentiation.

Since the answer can be very large, return the answer modulo 10^9 +7.

Fibonacci number is calculated using the following formula:
F(n) = F(n-1) + F(n-2), 
Where, F(1) = F(2) = 1.
For Example:
For ‘N’ = 5, the output will be 5.
Try solving now

2. DBMS Question

What are the factors to check during database testing? (Learn)

3. Reverse Words In A String

Easy
10m average time
90% success
0/40
Asked in companies
UnacademyIBMOptum

You are given a string 'str' of length 'N'.


Your task is to reverse the original string word by word.


There can be multiple spaces between two words and there can be leading or trailing spaces but in the output reversed string you need to put a single space between two words, and your reversed string should not contain leading or trailing spaces.


Example :
If the given input string is "Welcome to Coding Ninjas", then you should return "Ninjas Coding to Welcome" as the reversed string has only a single space between two words and there is no leading or trailing space.
Try solving now
02
Round
Medium
Video Call
Duration60 minutes
Interview date2 Mar 2021
Coding problem2

1. Machine Learning Questions

What Are the Different Types of Machine Learning? (Learn)

What is Overfitting, and How Can You Avoid It? (Learn)

2. Conceptual Question

What are autoencoders? Explain the different layers of autoencoders and mention three practical uses for them. (Learn)

03
Round
Hard
HR Round
Duration90 minutes
Interview date12 Mar 2021
Coding problem1

1. Basic HR Questions

Introduce yourself briefly.

Why do you want to join us?

Where do you see yourself in 5 years?

What experience do you have that would be relevant to this role?

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

What is recursion?

Choose another skill to practice
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