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Z1 Tech Associate Data Analyst Interview Questions and Answers

Updated 23 Apr 2023

Z1 Tech Associate Data Analyst Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed before Apr 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 tips
Round 2 - HR 

(1 Question)

  • Q1. Majorly about previous work experience.
Round 3 - Technical 

(1 Question)

  • Q1. Asked me to build a dashboard in Google sheet and advance Excel test
Round 4 - HR 

(1 Question)

  • Q1. Salary and other discussions

Interview Preparation Tips

Topics to prepare for Z1 Tech Associate Data Analyst interview:
  • advance excel
  • google sheet
  • Google Analytics
  • google studio
Interview preparation tips for other job seekers - be sound with your skills.. rest will fall in place.

Interview questions from similar companies

I applied via Approached by Company and was interviewed in Mar 2018. There were 2 interview rounds.

Interview Preparation Tips

Round: Resume Shortlist
Experience: My Resume was shortlisted and asked to comedown for Interview. On the day they re-scheduled it for some other day and when i was trying to contact them again via call and when i thought its not professional so e-mailed them. However unfortunately could not get any response from them and it's been more than 1 month

General Tips: My Resume was shortlisted and asked to comedown for Interview. On the day they re-scheduled it for some other day and when i was trying to contact them again via call and when i thought its not professional so e-mailed them. However unfortunately could not get any response from them and it's been more than 1 month
Skills: Problem Solving
Duration: <1 week

Interview Questionnaire 

1 Question

  • Q1. General discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - Interaction was good...But no feedback from HR yet.

I applied via Referral and was interviewed before Oct 2020. There were 5 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Tell us about yourself?
  • Ans. I ma from Kolkata. I am married.
  • Answered by Tanay Lakshman
  • Q2. Tell us about business administration?

Interview Preparation Tips

Interview preparation tips for other job seekers - I got selected by Ravi Bujji and Anjilee Istawal of NDTV.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

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

Round 1 - Technical 

(2 Questions)

  • Q1. Find 3rd transaction of user from uber cab dataset
  • Ans. 

    To find the 3rd transaction of a user from the Uber cab dataset.

    • Identify the user's transactions in the dataset

    • Sort the transactions by date/time

    • Select the 3rd transaction of the user

  • Answered by AI
  • Q2. Find last quarter ordered product from logistics dataset
  • Ans. 

    To find the last quarter ordered product from logistics dataset.

    • Identify the date range for the last quarter

    • Filter the dataset for orders within that date range

    • Identify the product ordered in the last quarter

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Asked more question involved with cte, window function, subqueries
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
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 - HR 

(1 Question)

  • Q1. About job experience and salary
Round 3 - Technical 

(1 Question)

  • Q1. Past and current work profile
Round 4 - One-on-one 

(1 Question)

  • Q1. How to do your work

Interview Preparation Tips

Interview preparation tips for other job seekers - Truely speak and be confident
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Asked what i am doing in my present job and what i can do for this company
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Case Study 

Just focused on your core skills and go for it

Round 2 - HR 

(2 Questions)

  • Q1. What's your Expectations from organisation
  • Ans. 

    I expect the organization to provide opportunities for growth, a supportive work environment, and recognition for achievements.

    • Opportunities for professional development and advancement

    • A positive and supportive work culture

    • Recognition for hard work and achievements

    • Clear communication and feedback from management

    • Competitive compensation and benefits

    • Work-life balance initiatives

  • Answered by AI
  • Q2. What is your future plan regarding this organisation
  • Ans. 

    My future plan is to continue growing and developing within this organization, taking on more responsibilities and contributing to its success.

    • Continue to excel in my role as a Research Analyst

    • Seek opportunities for advancement within the organization

    • Contribute innovative ideas and solutions to help the organization achieve its goals

  • Answered by AI

I applied via Approached by Company and was interviewed before May 2021. There were 3 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 - One-on-one 

(2 Questions)

  • Q1. Questions from past work experience
  • Q2. Research techniques and tools known, knowledge about BARC software.
Round 3 - One-on-one 

(1 Question)

  • Q1. Overall role and compensation

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare on the JD and Role and collate with your past work experience

Interview Questionnaire 

18 Questions

  • Q1. Introduce yourself.
  • Q2. Being from a non-CS background (Civil Engineering branch), he asked me which coding language i am best at
  • Q3. Find the second largest prime number from a given array of positive integers. Also return it's index in most optimal way
  • Ans. 

    Find the second largest prime number and its index from an array of positive integers.

    • Iterate through the array and check if each number is prime

    • Store the largest and second largest prime numbers found so far

    • Also store their indices

    • Return the second largest prime number and its index

  • Answered by AI
  • Q4. Given an array of positive and negative integers, find the first missing positive number in the most optimal way
  • Ans. 

    Find the first missing positive number in an array of positive and negative integers.

    • Sort the array in ascending order

    • Iterate through the sorted array and find the first positive number that is missing

    • If no positive number is missing, return the next positive number after the largest positive number in the array

  • Answered by AI
  • Q5. Which data structure would i use to program a jigsaw puzzle program and what methods would i use to solve the puzzle
  • Ans. 

    The data structure to program a jigsaw puzzle program would be a graph.

    • Use a graph data structure to represent the puzzle pieces and their connections.

    • Each puzzle piece can be represented as a node in the graph.

    • Edges between nodes represent the connections between puzzle pieces.

    • To solve the puzzle, use graph traversal algorithms like depth-first search or breadth-first search.

    • Apply puzzle-solving strategies like findin

  • Answered by AI
  • Q6. Questions based on my resume
  • Q7. What do i know about Times Internet and the work that happens in TIL
  • Ans. 

    Times Internet Limited (TIL) is a digital products company that operates various online platforms and services.

    • TIL is a subsidiary of Bennett Coleman & Co. Ltd (BCCL), which is India's largest media conglomerate.

    • TIL operates popular websites and apps like Times of India, Economic Times, Gaana, MX Player, and Cricbuzz.

    • TIL focuses on digital content, e-commerce, and technology solutions.

    • TIL has a diverse portfolio of...

  • Answered by AI
  • Q8. Why was i opting for a job as software developer though i was from Civil Engineering background
  • Ans. 

    I transitioned to software development due to my passion for coding and problem-solving.

    • I discovered my interest in coding during my civil engineering studies

    • I took online courses and attended coding bootcamps to learn software development skills

    • I completed projects and internships in software development to gain practical experience

    • I enjoy the creativity and problem-solving aspects of software development

  • Answered by AI
  • Q9. Asked me questions based on my CV
  • Q10. If a person travels from point A to point B at 20 km/h and returns at 30 km/h, calculate the average speed without using pen and paper.
  • Ans. 

    The average speed can be calculated by taking the harmonic mean of the two speeds.

    • To calculate the harmonic mean, divide the sum of the speeds by the reciprocal of the sum of their reciprocals.

    • In this case, the harmonic mean can be calculated as 2/(1/20 + 1/30) = 24 km/h.

  • Answered by AI
  • Q11. Asked the above question with different speeds to travelling
  • Q12. Given 8 balls of the same properties and one of these balls is defective and is heavier than the others. Calculate the minimum no. of steps to find the defective ball
  • Ans. 

    The minimum number of steps to find the defective ball is 2.

    • Divide the 8 balls into 3 groups of 3, 3, and 2 balls.

    • Compare the weights of the two groups of 3 balls.

    • If one group is heavier, divide it into 2 balls and compare their weights.

    • If the two balls have different weights, the heavier ball is the defective one.

    • If the two balls have the same weight, the remaining ball in the first group of 3 is the defective one.

  • Answered by AI
  • Q13. Asked the above question, but this time we don't know whether the defective ball is heavier or lighter than the others
  • Q14. 20 red balls and 16 blue balls are present in a bag. 2 balls are removed, if they are of the same color, then they are replaced by a red ball. If they are of different color, then they are replaced with a...
  • Q15. What is polymorphism with examples
  • Ans. 

    Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.

    • Polymorphism is achieved through method overriding and method overloading.

    • Method overriding allows a subclass to provide a specific implementation of a method that is already defined in its superclass.

    • Method overloading allows multiple methods with the same name but different parameters ...

  • Answered by AI
  • Q16. What is operator overloading?. Give an example
  • Ans. 

    Operator overloading is the ability to redefine operators for custom classes.

    • Allows operators to be used with custom classes

    • Example: '+' operator can be used to concatenate strings

    • Can improve readability and simplify code

  • Answered by AI
  • Q17. Differentiate between method overloading and method overriding
  • Ans. 

    Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name, return type, and parameters as a method in its superclass.

    • Method overloading is achieved within the same class.

    • Method overriding occurs in a subclass that inherits from a superclass.

    • Method overloading is determined at compile-time based on the number, type, an...

  • Answered by AI
  • Q18. Do you have any question for us?

Interview Preparation Tips

Round: Test
Experience: The test was of moderate level, the coding question was easy if all the boundary questions were properly considered.
Tips: 1. Practice questions on Geekquiz.
2. Practice coding problems. There are various websites like HackerRank, HackerEarth etc. which have a lot of coding problems.
Duration: 90 minutes
Total Questions: 22

Round: Technical Interview
Experience: The interviewer was friendly and he was interested in the implementation first and then the code.
Tips: Be thorough with various implementations and why they are in practice. Try to know the logic behind each implementation.

Round: Puzzle Interview
Experience: The interviewer was looking for a person interested in problem solving. He was looking forward for loud thinking.
Tips: If you don't know any answer, don't lose your cool. It is never necessary to answer all the questions in an interview. Be confident and think loud, so that if you are going the wrong way, the interviewer can assist you.

Round: HR Interview
Experience: This was the last round and just for formality. The interviewers were looking for a person who would fit in their working culture.
Tips: Be confident and always have a smile on your face. If you are selected for the HR interview, then there is a 90% chance that you would be selected.

General Tips: Be confident, think loudly, never panic and have a smile to your face always. You have already prepared hard for the recruitment process, it is just the confidence that matters. Don't lose hope, there are many opportunities for you.
Skills: Confidence, Communication, Puzzle Solving Capability, Algorithms And Data Structures, Basic C/C++
College Name: IIT Varanasi
Motivation: TIL has a wide range of products and the compensation is good
Funny Moments: The HR interview was more of a friendly talk and i shared my hobbies which led to a longer discussion.

Skills evaluated in this interview

Z1 Tech Interview FAQs

How many rounds are there in Z1 Tech Associate Data Analyst interview?
Z1 Tech interview process usually has 4 rounds. The most common rounds in the Z1 Tech interview process are HR, Resume Shortlist and Technical.

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Z1 Tech Associate Data Analyst Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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