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Mallow Technologies Ruby on Rails Developer Interview Questions and Answers

Updated 21 Apr 2024

Mallow Technologies Ruby on Rails Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via campus placement at Saranathan College of Engineering, Tiruchirapalli and was interviewed before Apr 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

Aptitude questions based on number system and logical reasonings.

Round 2 - Coding Test 

I was asked to write program for hotel booking application.

Round 3 - One-on-one 

(2 Questions)

  • Q1. I was asked to explain my program done on 2nd round. And asked to write basic SQL queries.
  • Q2. Write query to fetch records associated with given username. Write query to group the records based on their age.
  • Ans. 

    Query to fetch records by username and group by age

    • Use WHERE clause to filter records by username

    • Use GROUP BY clause to group records by age

    • Example: SELECT * FROM table_name WHERE username = 'example_username' GROUP BY age

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. Just personal details.

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(5 Questions)

  • Q1. Palindrome code should design
  • Ans. 

    Palindrome code should be designed to check if a given string is the same forwards and backwards.

    • Create a function that takes a string as input

    • Remove any spaces and punctuation from the string

    • Reverse the string and compare it to the original string to check if it is a palindrome

  • Answered by AI
  • Q2. Regarding sql topics like joins and acid
  • Q3. Project explain and domain
  • Q4. Project explain and domain and internal working
  • Q5. Oops concepts and coding

Interview Preparation Tips

Interview preparation tips for other job seekers - Plzzzz don't join this worst company...they treat u like daily wages person
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

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I was interviewed in Dec 2024.

Round 1 - Technical 

(3 Questions)

  • Q1. Difference between function and method
  • Ans. 

    A function is a piece of code that is called by name, while a method is a function that is associated with an object.

    • Functions are standalone blocks of code, while methods are functions that are part of a class or object.

    • Functions can be called independently, while methods are called on an object.

    • Functions do not have access to data stored in an object, while methods can access and modify object data.

  • Answered by AI
  • Q2. A program related to strings
  • Q3. A program related to prime numbers
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Tell me about projects you have worked upon
  • Q2. PEP-8 standards
Round 2 - Technical 

(2 Questions)

  • Q1. Architecture of project on which you were working
  • Q2. Pandas and Numpy
Round 3 - HR 

(2 Questions)

  • Q1. Tell me your Current CTC
  • Q2. Tell me your Expected CTC
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is the D/W Rest and GraphQL APIS?
  • Q2. REST uses fixes endpoint;..............etc.
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. What is single page application
  • Ans. 

    Single page application is a web application that loads a single HTML page and dynamically updates the content as the user interacts with the app.

    • SPA uses AJAX and HTML5 to create fluid and responsive user experience.

    • It eliminates the need for page reloading during use, making it faster and more efficient.

    • Examples include Gmail, Facebook, and Google Maps.

  • Answered by AI
  • Q2. What is state management
  • Ans. 

    State management is the process of managing the state of an application, including data flow, user interface updates, and user interactions.

    • State management involves storing and updating the state of an application to ensure data consistency.

    • It helps in managing user interface updates based on changes in the application state.

    • State management is crucial for handling user interactions and maintaining a seamless user exp...

  • Answered by AI

Skills evaluated in this interview

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

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

Round 1 - Technical 

(1 Question)

  • Q1. Basic flutter coding questions
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. What is jdk, string related questions, basic java oops questions?
Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Feb 2024. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. ATG Endeca Spring boot microservices
Round 2 - Technical 

(2 Questions)

  • Q1. Java Oracle Commerce ATG AWS Kafka kubernate
  • Q2. Microservices Oracle Commerce AWS Mongo DB

Interview Preparation Tips

Topics to prepare for NexTurn Technical Lead interview:
  • Java
  • Oracle 11G
  • SpringBoot
  • Microservices
  • Kafka
  • Kubernetes
Interview preparation tips for other job seekers - Select company preparation and wait for their vacancies.
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Mallow Technologies Interview FAQs

How many rounds are there in Mallow Technologies Ruby on Rails Developer interview?
Mallow Technologies interview process usually has 4 rounds. The most common rounds in the Mallow Technologies interview process are Aptitude Test, Coding Test and One-on-one Round.
What are the top questions asked in Mallow Technologies Ruby on Rails Developer interview?

Some of the top questions asked at the Mallow Technologies Ruby on Rails Developer interview -

  1. Write query to fetch records associated with given username. Write query to gro...read more
  2. I was asked to explain my program done on 2nd round. And asked to write basic S...read more

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Mallow Technologies Ruby on Rails Developer Interview Process

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Interview experience

4
  
Good
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Mallow Technologies Ruby on Rails Developer Salary
based on 13 salaries
₹4 L/yr - ₹5 L/yr
29% less than the average Ruby on Rails Developer Salary in India
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Mallow Technologies Ruby on Rails Developer Reviews and Ratings

based on 3 reviews

3.7/5

Rating in categories

4.5

Skill development

3.5

Work-life balance

3.5

Salary

3.5

Job security

3.0

Company culture

3.0

Promotions

3.5

Work satisfaction

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