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ChiStats Interview Questions and Answers

Updated 2 Jun 2022

ChiStats Interview Experiences

1 interview found

Data Engineer/Scientist Interview Questions & Answers

user image Anonymous

posted on 2 Jun 2022

I applied via Company Website and was interviewed before Jun 2021. There were 4 interview rounds.

Round 1 - Aptitude Test 

Focused on maths, logical thinking, percentage, profit n loss, ect.

Round 2 - Coding Test 

Python coding test with difficult questions with 10 test cases each

Round 3 - Technical 

(3 Questions)

  • Q1. Python technical questions (basic, class, functions)
  • Q2. SQL related questions (aggregate, window functions, nested queries)
  • Q3. Basics of statistics
Round 4 - HR 

(1 Question)

  • Q1. Job description explained

Interview Preparation Tips

Interview preparation tips for other job seekers - If you're the one who is logically strong and love to solve complex problems. You'll be the best fit for Chistats.

Interview questions from similar companies

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Technical 

(12 Questions)

  • Q1. Rate yourself in js, node js, react, MongoDB (separately)
  • Q2. Typeof null, typeof undefined, typeof {}, typeof NaN
  • Q3. What changes came in es6
  • Ans. 

    ES6 introduced several new features and improvements to JavaScript, making it more powerful and efficient.

    • Arrow functions for more concise syntax

    • Let and const for block-scoped variables

    • Classes for easier object-oriented programming

    • Template literals for easier string interpolation

    • Default parameters and rest parameters for function arguments

    • Destructuring assignment for easier data extraction

    • Promises for asynchronous prog

  • Answered by AI
  • Q4. This keyword, closures, hoisting
  • Q5. Are let and cont variables hoisted?
  • Ans. 

    Yes, let and const variables are hoisted but not initialized.

    • let and const variables are hoisted to the top of their block scope, but they are not initialized until the actual line of code is executed.

    • This means that you cannot access a let or const variable before it is declared in the code.

    • For example, trying to access a let variable before it is declared will result in a ReferenceError.

  • Answered by AI
  • Q6. What is global context
  • Ans. 

    Global context refers to the overall environment or setting in which something exists or operates.

    • Global context encompasses all variables, functions, and objects that are accessible throughout an entire program.

    • It can be thought of as the 'big picture' view of a program's execution.

    • In web development, global context includes the window object in JavaScript.

  • Answered by AI
  • Q7. What is temporal deadzone
  • Ans. 

    Temporal dead zone is a period during the variable creation process where accessing the variable results in a ReferenceError.

    • Occurs when trying to access a variable before it has been declared with let or const

    • Happens due to the variable being in the temporal dead zone until it is declared

    • Example: accessing a variable before its declaration will result in a ReferenceError

  • Answered by AI
  • Q8. What is modules? types of modules in nodejs
  • Ans. 

    Modules in Node.js are reusable blocks of code that encapsulate related functionality.

    • Modules in Node.js can be built-in modules like fs (file system) or third-party modules like express.

    • Modules help in organizing code into separate files for better maintainability and reusability.

    • Modules can be imported using the require() function in Node.js.

  • Answered by AI
  • Q9. Index in mongodb, why we need index, is index good or bad?
  • Ans. 

    Indexes in MongoDB improve query performance by allowing the database to quickly locate and retrieve specific documents.

    • Indexes help to speed up query performance by allowing the database to quickly locate specific documents based on the indexed fields.

    • Without indexes, MongoDB would have to perform a collection scan, which can be slow and resource-intensive.

    • Indexes can be created on single fields or compound fields to ...

  • Answered by AI
  • Q10. What are hooks , use of useRef
  • Ans. 

    Hooks are a feature in React that allow you to use state and other React features in functional components. useRef is a hook that allows you to create a mutable object that persists for the lifetime of the component.

    • Hooks are used to add state and lifecycle methods to functional components in React

    • useRef is used to create a mutable reference that persists between renders

    • useRef can be used to access DOM elements directl

  • Answered by AI
  • Q11. Fs module, http module, worker thread?
  • Q12. Why we use mongoose not mongodb driver?
  • Ans. 

    Mongoose is an Object Data Modeling (ODM) library for MongoDB that provides a higher level of abstraction and simplifies interactions with the database.

    • Mongoose provides schema validation which helps maintain data integrity.

    • Mongoose simplifies querying and data manipulation with built-in functions.

    • Mongoose supports middleware functions for pre and post processing of data operations.

  • Answered by AI

Skills evaluated in this interview

Salesforce Solution Architect II Interview Questions & Answers

Wilco Source user image Kapil Patle

posted on 6 Dec 2024

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Architecture, Design, Proposal and All functoonal
  • Q2. Detailed technical discussion
Round 2 - Technical 

(2 Questions)

  • Q1. Deep dive in design & architecture
  • Q2. Deep dive in technical
Round 3 - Technical 

(2 Questions)

  • Q1. Tech cum management
  • Q2. Stakeholder related
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. Mvvm and Mvc architectures
  • Q2. Gave Code snippets to find the output
  • Q3. Swift basics and concepts like memory management
  • Q4. Oops concepts and solid principles
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Coding Test 

Coding test was basically asking about debugging codes related to java used in selenium & other SDLC cycle basic questions related to testing.

Round 2 - One-on-one 

(3 Questions)

  • Q1. Mobile testing questions
  • Q2. Real life logical questions
  • Q3. OOPs concept relating to testing
Interview experience
2
Poor
Difficulty level
Easy
Process Duration
2-4 weeks
Result
No response

I applied via LinkedIn

Round 1 - HR 

(1 Question)

  • Q1. Do you think a business analyst acts like a postman?
  • Ans. 

    No, a business analyst does not act like a postman.

    • A business analyst analyzes business processes, identifies areas for improvement, and recommends solutions.

    • A postman delivers mail and packages to recipients.

    • While both roles involve communication, a business analyst focuses on improving business operations while a postman focuses on delivering mail.

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. How do you measure velocity, basic BA questions, guesstimate questions
  • Q2. Different estimation techniques
  • Ans. 

    Different estimation techniques include bottom-up, top-down, analogous, parametric, and expert judgment.

    • Bottom-up estimation involves breaking down the project into smaller tasks and estimating each individually.

    • Top-down estimation uses historical data or high-level information to estimate the project as a whole.

    • Analogous estimation relies on past similar projects to estimate the current project.

    • Parametric estimation u...

  • Answered by AI
Round 3 - One-on-one 

(1 Question)

  • Q1. Same type of questions were repeated
Round 4 - One-on-one 

(1 Question)

  • Q1. Interview with the CEO , guesstimate questions, technical experience
Round 5 - HR 

(1 Question)

  • Q1. General hr questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Do not waste your time interviewing for this company because they will string you along, and ask you to take interviews back to back on the same day even though you have other professional commitments. When it comes to giving you a job offer despite doing well and answering all their questions, they will reject you by giving you a lame reason. They will keep on following up with you if you are selected in the next round of interviews but they don't even bother handing out a rejection email after days forget even sharing feedback with the candidate despite wasting their time by taking more than 2 to 3 round of interview for a simple role of BA

Also, they do not respect your time, both the CEO and hr round started late. Dear potential Jobseeker ask yourself this: if they do not respect your time while interviewing, do you think they will respect you once you join?

Product & Strategy Interview Questions & Answers

WinZO user image Anonymous

posted on 27 Nov 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
-

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

Round 1 - One-on-one 

(2 Questions)

  • Q1. Suggest improvement in WinZO App?
  • Q2. How to prevent fraud in Chess?
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Sep 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Aptitude questions with some basic coding questions

Round 2 - Coding Test 

They have given 3 coding questions and some pseudo codings

Round 3 - Technical 

(2 Questions)

  • Q1. Tell about your self
  • Q2. Some coding questions

Interview Preparation Tips

Interview preparation tips for other job seekers - be confident
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - One-on-one 

(2 Questions)

  • Q1. Tell me about your self.
  • Ans. 

    I am a passionate software engineering student with experience in web development and a strong desire to learn and grow.

    • Currently pursuing a degree in Computer Science

    • Proficient in programming languages such as Java, Python, and JavaScript

    • Experience with front-end technologies like HTML, CSS, and React

    • Completed internships at tech companies like XYZ Inc.

    • Interested in exploring machine learning and artificial intelligen

  • Answered by AI
  • Q2. What's your skill and experience.
  • Ans. 

    I have strong skills in programming languages such as Java, Python, and C++, as well as experience with web development and database management.

    • Proficient in Java, Python, and C++ programming languages

    • Experience with web development using HTML, CSS, and JavaScript

    • Familiarity with database management systems like MySQL and MongoDB

  • Answered by AI

Interview Preparation Tips

Topics to prepare for GrapplTech Software Engineer Intern interview:
  • Java
  • Javascript
  • React.Js
  • Node.Js
  • MySQL
  • OOPS
  • DSA
Interview preparation tips for other job seekers - It's a Great Platform for job seekers.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Hacker Rank Test that was not much hard

Round 2 - Technical 

(2 Questions)

  • Q1. Basics of python, SQL and pyspark
  • Q2. Projects written in the resume
Round 3 - Technical 

(2 Questions)

  • Q1. On databricks architecture
  • Q2. Previous project experience

ChiStats Interview FAQs

How many rounds are there in ChiStats interview?
ChiStats interview process usually has 4 rounds. The most common rounds in the ChiStats interview process are HR, Aptitude Test and Coding Test.
How to prepare for ChiStats 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 ChiStats. The most common topics and skills that interviewers at ChiStats expect are Python, Data Analytics, Data Science, Machine Learning and generative ai.
What are the top questions asked in ChiStats interview?

Some of the top questions asked at the ChiStats interview -

  1. Python technical questions (basic, class, functio...read more
  2. SQL related questions (aggregate, window functions, nested queri...read more
  3. Basics of statist...read more

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ChiStats Reviews and Ratings

based on 10 reviews

4.9/5

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4.5

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4.8

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