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CodeAstu Technologies Interview Questions and Answers
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4 interviews found
Anonymous
Selected
I applied via Approached by Company and was interviewed in Sep 2024. There were 3 interview rounds.
(3 Questions)
- Q1. Basis to Intermediate level question of Python
- Q2. 4 Easy to Medium Level coding questions
- Q3. Asked to write SQL query
(2 Questions)
- Q1. Project experience, Tech stacks
- Q2. Fundamentals of Software Development Life Cycle
- Ans.
Software Development Life Cycle (SDLC) is a process used by software development teams to design, develop, and test high-quality software.
SDLC consists of several phases including planning, analysis, design, implementation, testing, and maintenance.
Each phase has its own set of activities and deliverables to ensure the successful completion of the project.
Examples of SDLC models include Waterfall, Agile, and DevOps.
SDL...
(2 Questions)
- Q1. This 1-1 is with the CEO of the company
- Q2. Company fitment based questions
Interview Preparation Tips
Skills evaluated in this interview
Software Engineer Interview Questions asked at other Companies
Digvijay D.Rathod
(2 Questions)
- Q1. What aldfja aldj ad fj
- Ans.
The question seems to be incomplete or unclear, possibly a mistake in transcription.
Ask for clarification or more context from the interviewer.
Confirm if the question was meant to be asked in a different way.
Offer to provide a response based on a different question related to data engineering.
- Q2. What aldjf adlfj ad adf ald
(2 Questions)
- Q1. Salary expectation
- Q2. What are your Hobbies
Interview Preparation Tips
Data Engineer Interview Questions asked at other Companies
(1 Question)
- Q1. Basic Javascript and React questions
(1 Question)
- Q1. Last projects you have worked on
Interview Preparation Tips
Be online present on social media
Have new projects on github
Do coding on online platforms regularly
Software Engineer Interview Questions asked at other Companies
Mohit Jagtap
(2 Questions)
- Q1. Python code with different case
- Ans.
Python code with different case
Python is case-sensitive, so variables with different case are treated as different variables
It is recommended to use consistent naming conventions to avoid confusion
Examples: 'myVar', 'myvar', and 'MYVAR' are three different variables
- Q2. Sql query on diff case
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Skills evaluated in this interview
Data Engineer Interview Questions asked at other Companies
CodeAstu Technologies interview questions for popular designations
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I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
(16 Questions)
- Q1. What are custom hooks in React, and what are their use cases? Additionally, can you provide an example of a custom hook that performs an API call and utilizes the retrieved data?
- Ans.
Custom hooks in React are reusable functions that allow you to extract component logic into separate functions for better code organization and reusability.
Custom hooks are created using the 'use' prefix and can be used to share logic between components.
Use cases for custom hooks include fetching data from an API, handling form state, managing local storage, and more.
Example of a custom hook for API call: const useFetc...
- Q2. What is the difference between useMemo and useCallback in React?
- Ans.
useMemo is used to memoize a value, while useCallback is used to memoize a function.
useMemo is used to memoize a value and recompute it only when its dependencies change.
useCallback is used to memoize a callback function and prevent unnecessary re-renders.
Example: useMemo can be used to memoize the result of a complex computation, while useCallback can be used to memoize an event handler function.
- Q3. What is the difference between class-based components and functional components in React?
- Ans.
Class-based components use ES6 classes and have lifecycle methods, while functional components are simpler and use functions.
Class-based components use ES6 classes to create components, while functional components are created using functions.
Class-based components have lifecycle methods like componentDidMount and componentDidUpdate, while functional components do not.
Functional components are simpler and more lightweig...
- Q4. How can you implement the lifecycle of a React component in a functional component?
- Ans.
Implementing the lifecycle of a React component in a functional component
Use the useEffect hook to replicate lifecycle methods like componentDidMount, componentDidUpdate, and componentWillUnmount
Pass an empty array as the second argument to useEffect to mimic componentDidMount
Pass a variable or state as the second argument to useEffect to mimic componentDidUpdate
Return a cleanup function inside useEffect to mimic compo
- Q5. What are the various state management techniques available in React?
- Ans.
Various state management techniques in React include Context API, Redux, and local state.
Context API: React's built-in solution for passing data through the component tree without having to pass props down manually at every level.
Redux: A popular state management library for React applications, allowing for a centralized store to manage application state.
Local state: Managing state within individual components using us
- Q6. What is the architecture of Redux, and what purposes do middlewares serve within it?
- Ans.
Redux is a predictable state container for JavaScript apps. Middlewares are functions that intercept actions before they reach the reducer.
Redux follows a unidirectional data flow architecture.
Middlewares in Redux are functions that can intercept, modify, or dispatch actions.
Common use cases for middlewares include logging, asynchronous API calls, and handling side effects.
Examples of popular Redux middlewares are Redu...
- Q7. What is hoisting in JavaScript?
- Ans.
Hoisting in JavaScript is the behavior where variable and function declarations are moved to the top of their containing scope during the compilation phase.
Variable declarations are hoisted to the top of their scope, but not their initializations.
Function declarations are fully hoisted, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
- Q8. What is event bubbling in JavaScript?
- Ans.
Event bubbling is the propagation of events from the target element up through its ancestors in the DOM tree.
Events triggered on a child element will 'bubble up' and trigger on parent elements.
Event listeners can be attached to parent elements to handle events from multiple child elements.
Stopping event propagation can be done using event.stopPropagation() or event.stopImmediatePropagation().
- Q9. What are block scope and function scope in JavaScript?
- Ans.
Block scope and function scope are two types of scopes in JavaScript that determine the visibility and accessibility of variables.
Block scope refers to the visibility of variables within a block of code enclosed by curly braces. Variables declared with 'let' and 'const' have block scope.
Function scope refers to the visibility of variables within a function. Variables declared with 'var' have function scope.
Variables de...
- Q10. Have you had experience working with semantic tags in HTML?
- Ans.
Yes, I have experience working with semantic tags in HTML.
Used semantic tags like <header>, <nav>, <main>, <section>, <article>, <aside>, <footer> for better structure and SEO.
Understand the importance of using semantic tags for accessibility and search engine optimization.
Semantic tags help in organizing content and making it more readable for developers and browsers.
- Q11. What are the various methods for creating an object in JavaScript?
- Ans.
Various methods for creating an object in JavaScript include object literals, constructor functions, ES6 classes, and Object.create() method.
Object literals: var obj = { key: value };
Constructor functions: function ObjectName() { this.key = value; } var obj = new ObjectName();
ES6 classes: class ClassName { constructor() { this.key = value; } } var obj = new ClassName();
Object.create() method: var obj = Object.create(pr
- Q12. What are the differences between shallow copy and deep copy in JavaScript?
- Ans.
Shallow copy only copies the references of nested objects, while deep copy creates new copies of nested objects.
Shallow copy creates a new object but does not create copies of nested objects, only copies their references.
Deep copy creates a new object and also creates new copies of all nested objects.
Shallow copy can be achieved using Object.assign() or spread operator, while deep copy can be achieved using JSON.parse(
- Q13. What will be the output of the following JavaScript code fragment: `const a; function test() { console.log(a); }; test();`?
- Ans.
The code will throw an error because 'a' is declared but not initialized.
The code will result in a ReferenceError because 'a' is declared but not assigned a value.
Variables declared with 'const' must be initialized at the time of declaration.
Initializing 'a' with a value before calling test() will prevent the error.
- Q14. How can you use CSS to arrange elements in a row and column layout?
- Ans.
CSS can be used to arrange elements in a row and column layout using flexbox or grid layout properties.
Use display: flex; for a row layout and display: flex; flex-direction: column; for a column layout
Use justify-content and align-items properties to align items in the main axis and cross axis respectively
For grid layout, use display: grid; and grid-template-columns or grid-template-rows to define the layout
- Q15. Have you utilized CSS preprocessors, and if so, which ones?
- Ans.
Yes, I have utilized CSS preprocessors such as SASS and LESS.
I have experience using SASS to streamline my CSS workflow by utilizing variables, mixins, and nesting.
I have also worked with LESS to improve code organization and maintainability through features like variables and functions.
- Q16. If I have assigned different colors to an ID and a class and applied both to the same element, which color will be applied based on CSS specificity precedence?
- Ans.
The color applied will be based on the specificity of the selector, with ID having higher specificity than class.
ID has higher specificity than class in CSS
Color applied will be based on the selector with higher specificity
Example: If ID selector has color red and class selector has color blue, the color applied will be red
Interview Preparation Tips
- Javascript
- React.Js
- HTML
- CSS
Skills evaluated in this interview
RISHABH Pal
Selected
I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
The Aptitude Test session accesses mathematical and logical reasoning abilities
(6 Questions)
- Q1. What is Vlookup
- Ans.
Vlookup is a function in Excel used to search for a value in a table and return a corresponding value from another column.
Vlookup stands for 'Vertical Lookup'
It is commonly used in Excel to search for a value in the leftmost column of a table and return a value in the same row from a specified column
Syntax: =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])
Example: =VLOOKUP(A2, B2:D10, 3, FALSE) - searc...
- Q2. Some IF else Question in Excel
- Q3. What does your day in your previous organization look like?
- Ans.
My day in my previous organization involved analyzing large datasets, creating reports, and presenting findings to stakeholders.
Reviewing and cleaning large datasets to ensure accuracy
Creating visualizations and reports to communicate insights
Collaborating with team members to identify trends and patterns
Presenting findings to stakeholders in meetings or presentations
- Q4. Could you share the technical skills you possess?
- Ans.
I possess strong technical skills in data analysis, including proficiency in programming languages, statistical analysis, and data visualization tools.
Proficient in programming languages such as Python, R, SQL
Skilled in statistical analysis and data modeling techniques
Experience with data visualization tools like Tableau, Power BI
Knowledge of machine learning algorithms and techniques
- Q5. Can you explain what a Pivot Table is?
- Ans.
A Pivot Table is a data summarization tool used in spreadsheet programs to analyze, summarize, and present data in a tabular format.
Pivot tables allow users to reorganize and summarize selected columns and rows of data to obtain desired insights.
Users can easily group and filter data, perform calculations, and create visualizations using pivot tables.
Pivot tables are commonly used in Excel and other spreadsheet program...
- Q6. Find the Highest-paid employee in each department along with their salary and department name.
- Ans.
To find the highest-paid employee in each department, we need to group employees by department and then select the employee with the highest salary in each group.
Group employees by department
Find the employee with the highest salary in each group
Retrieve the employee's name, salary, and department name
Interview Preparation Tips
- SQL
- Excel
- Problem Solving
- PowerBI
- SQL Queries
Be prepared to discuss past challenges and how did you overcome.
Selected
(5 Questions)
- Q1. HTML, CSS fundamentals
- Q2. Javascript event loop and array methods
- Q3. Javascript coding for operation on object array
- Ans.
Performing operations on an array of objects using JavaScript.
Use array methods like map, filter, reduce for operations on object array.
Access object properties using dot notation or bracket notation.
Iterate through the array using loops like for loop or forEach method.
Example: Calculate total sum of 'price' property in an array of products.
- Q4. React benefits and Redux implementations
- Q5. How to create slice and combine reducers
- Ans.
To create slice and combine reducers in React, use the createSlice and combineReducers functions from Redux toolkit.
Use createSlice function to define a slice of state with reducers and actions.
Example: const counterSlice = createSlice({ name: 'counter', initialState: 0, reducers: { increment: state => state + 1, decrement: state => state - 1 } })
Use combineReducers function to combine multiple slices into a sing...
(2 Questions)
- Q1. Questions based on projects, role, responsibilities and initiative at work place
- Q2. How to create and optimize a react application
- Ans.
To create and optimize a React application, focus on efficient component structure, state management, code splitting, lazy loading, and performance monitoring.
Use functional components and hooks for better performance.
Implement state management with tools like Redux or Context API.
Split code into smaller chunks and lazy load components for faster initial load times.
Optimize performance by minimizing re-renders and usin...
(1 Question)
- Q1. Day to day activity of workplace and salary negotiation
- Ans.
Day to day activities involve coding, debugging, testing, collaborating with team members. Salary negotiation involves research, preparation, and effective communication.
Coding and developing new features
Debugging and fixing issues
Testing code for quality assurance
Collaborating with team members for project progress
Researching market rates for salary negotiation
Preparing a strong case for desired salary
Effectively comm
Selected
I applied via LinkedIn and was interviewed in Nov 2024. There were 3 interview rounds.
(2 Questions)
- Q1. Basic ReactJs ,NodeJs questions with typescript
- Q2. Prepare for javascript problems on , string , array , recursion, this.fn
(2 Questions)
- Q1. Asked on Node.js event loop , libuv , AWS , Ci-Cid , authentication, middleware , design and problem solving questions
- Q2. Recursion, array methods problem solving Js questions , es6 , array methods
(2 Questions)
- Q1. Details about you and your family,. Location
- Q2. Salary expectations
Interview Preparation Tips
I applied via Approached by Company and was interviewed in Nov 2024. There were 2 interview rounds.
(3 Questions)
- Q1. What are the different types of interfaces?
- Ans.
Different types of interfaces include user interfaces, hardware interfaces, and software interfaces.
User interfaces: allow users to interact with the system, such as graphical user interfaces (GUI) and command-line interfaces (CLI)
Hardware interfaces: connect hardware components to the system, such as USB, HDMI, and Ethernet ports
Software interfaces: define how software components interact with each other, such as appl...
- Q2. What is the output of the program when the expression is evaluated as 0 divided by 7?
- Ans.
The output of the program when 0 is divided by 7 is 0.
Division of 0 by any number results in 0.
In programming languages, dividing by 0 usually results in an error or undefined behavior.
- Q3. What are coroutines, scope functions, and visibility modifiers?
- Ans.
Coroutines, scope functions, and visibility modifiers are key concepts in Kotlin programming for Android development.
Coroutines are a way to perform asynchronous programming in a sequential manner. They allow for non-blocking operations.
Scope functions are functions that allow you to execute a block of code within the context of an object. Examples include 'let', 'apply', 'run', 'also', and 'with'.
Visibility modifiers ...
(3 Questions)
- Q1. What is the MVVM (Model-View-ViewModel) architectural pattern?
- Ans.
MVVM is an architectural pattern that separates the user interface from the business logic and data handling in Android development.
Model represents the data and business logic of the application.
View is responsible for displaying the UI elements and sending user interactions to the ViewModel.
ViewModel acts as a mediator between the Model and the View, handling the communication and data flow.
MVVM helps in achieving se...
- Q2. What are the reasons for using that, and what are its pros and cons?
- Ans.
Using dependency injection in Android development can improve code maintainability and testability.
Pros: easier to manage dependencies, promotes code reusability, facilitates unit testing
Cons: initial setup can be complex, may introduce overhead in smaller projects
Example: Using Dagger 2 for dependency injection in an Android project
- Q3. Questions related Dependency injection dagger-hilt / koin
Selected
I applied via Walk-in and was interviewed in Nov 2024. There was 1 interview round.
(9 Questions)
- Q1. Myself and experience in english
- Q2. Selected for the peocess
- Q3. Last drawn salary why you are not another process
- Q4. Why you left last job
- Q5. Rate ur english 1 to 10 numbers
- Q6. Introduce yourself as a employee
- Q7. Season topic talk for two minutes
- Q8. How is good english
- Q9. Your favourite place on this topic
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Software Engineer
13
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Senior Software Engineer
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| ₹8.5 L/yr - ₹13.8 L/yr |
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